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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">mrj</journal-id><journal-title-group><journal-title xml:lang="ru">Современная ревматология</journal-title><trans-title-group xml:lang="en"><trans-title>Modern Rheumatology Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1996-7012</issn><issn pub-type="epub">2310-158X</issn><publisher><publisher-name>IMA-PRESS, LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/1996-7012-2015-3-4-9</article-id><article-id custom-type="elpub" pub-id-type="custom">mrj-631</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЛЕКЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LECTURES</subject></subj-group></article-categories><title-group><article-title>Прогрессирующая мультифокальная лейкоэнцефалопатия: ревматологические аспекты</article-title><trans-title-group xml:lang="en"><trans-title>Progressive multifocal leukoencephalopathy: rheumatological aspects</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белов</surname><given-names>Борис Сергеевич</given-names></name><name name-style="western" xml:lang="en"><surname>Belov</surname><given-names>Boris Sergeevich</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, Москва, Каширское шоссе, 34А</p></bio><bio xml:lang="en"><p>34A, Kashirskoe Shosse, Moscow 115522</p></bio><email xlink:type="simple">belovbor@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ Научно-исследовательский институт ревматологии им. В.А. Насоновой</institution><country>Россия</country></aff><aff xml:lang="en"><institution>V.A. Nasonova Research Institute of Rheumatology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>18</day><month>09</month><year>2015</year></pub-date><volume>9</volume><issue>3</issue><fpage>4</fpage><lpage>9</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Белов Б.С., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Белов Б.С.</copyright-holder><copyright-holder xml:lang="en">Belov B.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://mrj.ima-press.net/mrj/article/view/631">https://mrj.ima-press.net/mrj/article/view/631</self-uri><abstract><p>Прогрессирующая мультифокальная лейкоэнцефалопатия (ПМЛ) – тяжелое прогрессирующее заболевание вирусной этиологии, протекающее с поражением ЦНС у больных с иммунодефицитом. Оно может развиваться как осложнение у больных с системными воспалительными ревматическими заболеваниями (в первую очередь с системной красной волчанкой), в том числе при проведении активной противоревматической терапии. В статье изложены данные об эпидемиологии, этиологии и патогенезе заболевания, охарактеризована клиническая картина, освещены основные подходы к диагностике, приведены современные диагностические критерии. Представлен опросник, применяемый с целью мониторинга неврологического статуса. Подчеркивается важность такого мониторинга, так как ранняя диагностика и своевременное прекращение лечения препаратом – потенциальным «триггером» ПМЛ – являются факторами, в наибольшей степени определяющими прогноз.</p></abstract><trans-abstract xml:lang="en"><p>Progressive multifocal leukoencephalopathy (PML) is a severe progressive viral disease that affects the central nervous system in patients with immunodeficiency. It may develop as a complication in patients with systemic inflammatory rheumatic diseases (primarily in those with systemic lupus erythematosus), including that during active antirheumatic therapy. The paper presents data on the etiology, epidemiology, and pathogenesis of the disease, characterizes its clinical presentation, highlights main approaches to its diagnosis, and gives current diagnostic criteria. A questionnaire used to monitor neurological status is shown. The paper emphasizes the importance of this monitoring, for early diagnosis and timely cessation of PML treatment with a drug, a potential trigger, are factors that influence prognosis to the utmost degree.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>прогрессирующая мультифокальная лейкоэнцефалопатия</kwd><kwd>клиника</kwd><kwd>диагностика</kwd><kwd>ревматические заболевания</kwd><kwd>противоревматическая терапия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>progressive multifocal leukoencephalopathy</kwd><kwd>clinical presentation</kwd><kwd>diagnosis</kwd><kwd>rheumatic diseases</kwd><kwd>antirheumatic therapy</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Astrom KE, Mancall EL, Richardson EP Jr. Progressive multifocal leukoencephalopathy; a hitherto unrecognized complication of chronic lymphatic leukaemia and Hodgkin's disease. Brain. 1958 Mar;81(1):93–111.</mixed-citation><mixed-citation xml:lang="en">Astrom KE, Mancall EL, Richardson EP Jr. Progressive multifocal leukoencephalopathy; a hitherto unrecognized complication of chronic lymphatic leukaemia and Hodgkin's disease. Brain. 1958 Mar;81(1):93–111.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Calabrese LH, Molloy E, Berger J. Sorting out the risks in progressive multifocal leukoencephalopathy. Nat Rev Rheumatol. 2015;11(2):119–23. doi:10.1038/nrrheum.2014.167.</mixed-citation><mixed-citation xml:lang="en">Calabrese LH, Molloy E, Berger J. Sorting out the risks in progressive multifocal leukoencephalopathy. Nat Rev Rheumatol. 2015;11(2):119–23. doi:10.1038/nrrheum.2014.167.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Padgett BL, Walker DL, ZuRhein GM, et al. Cultivation of papova-like virus from human brain with progressive multifocal leucoencephalopathy. Lancet. 1971;1(7712):1257–60.</mixed-citation><mixed-citation xml:lang="en">Padgett BL, Walker DL, ZuRhein GM, et al. Cultivation of papova-like virus from human brain with progressive multifocal leucoencephalopathy. Lancet. 1971;1(7712):1257–60.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Bag AK, Curе JK, Chapman PR, et al. JC-virus infection of the brain. Am J Neuroradiol. 2010;31(9):1564–76. doi: 10.3174/ajnr.A2035.</mixed-citation><mixed-citation xml:lang="en">Bag AK, Curе JK, Chapman PR, et al. JC-virus infection of the brain. Am J Neuroradiol. 2010;31(9):1564–76. doi: 10.3174/ajnr.A2035.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Tan SK, Koralnik I. JC, BK and other polyomaviruses: Progressive multifocal leucoencephalopathy. In: Bennet JE, Dolin R, Blaser MJ, editors.Mandel, Douglas and Bennet’s principles and practice of infectious diseases, 8th ed. New York: Saunders; 2015. P. 1574–89.</mixed-citation><mixed-citation xml:lang="en">Tan SK, Koralnik I. JC, BK and other polyomaviruses: Progressive multifocal leucoencephalopathy. In: Bennet JE, Dolin R, Blaser MJ, editors.Mandel, Douglas and Bennet’s principles and practice of infectious diseases, 8th ed. New York: Saunders; 2015. P. 1574–89.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Berger JR, Aksamit AJ, Clifford DB et al. PML diagnostic criteria: consensus statement from the AAN Neuroinfectious Disease Section. Neurology. 2013;80(15):1430–8. doi: 10.1212/WNL.0b013e31828c2fa1</mixed-citation><mixed-citation xml:lang="en">Berger JR, Aksamit AJ, Clifford DB et al. PML diagnostic criteria: consensus statement from the AAN Neuroinfectious Disease Section. Neurology. 2013;80(15):1430–8. doi: 10.1212/WNL.0b013e31828c2fa1</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Calabrese LH, Molloy ES, Huang D, Ransohoff RM. Progressive multifocal leukoencephalopathy in rheumatic diseases: evolving clinical and pathologic patterns of disease. Arthritis Rheum. 2007;56(7):2116–28. DOI: 10.1002/art.22657.</mixed-citation><mixed-citation xml:lang="en">Calabrese LH, Molloy ES, Huang D, Ransohoff RM. Progressive multifocal leukoencephalopathy in rheumatic diseases: evolving clinical and pathologic patterns of disease. Arthritis Rheum. 2007;56(7):2116–28. DOI: 10.1002/art.22657.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Molloy ES, Calabrese LH. Progressive multifocal leukoencephalopathy: a national estimate of frequency in systemic lupus erythematosus and other rheumatic diseases. Arthritis Rheum. 2009;60(12):3761–5. doi: 10.1002/art.24966.</mixed-citation><mixed-citation xml:lang="en">Molloy ES, Calabrese LH. Progressive multifocal leukoencephalopathy: a national estimate of frequency in systemic lupus erythematosus and other rheumatic diseases. Arthritis Rheum. 2009;60(12):3761–5. doi: 10.1002/art.24966.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Arkema EV, van Vollenhoven RF, Askling J; ARTIS Study Group. Incidence of progressive multifocal leukoencephalopathy in patients with rheumatoid arthritis: a national population-based study. Ann Rheum Dis. 2012;71(11):1865–7. doi: 10.1136/annrheumdis-2012-201638.</mixed-citation><mixed-citation xml:lang="en">Arkema EV, van Vollenhoven RF, Askling J; ARTIS Study Group. Incidence of progressive multifocal leukoencephalopathy in patients with rheumatoid arthritis: a national population-based study. Ann Rheum Dis. 2012;71(11):1865–7. doi: 10.1136/annrheumdis-2012-201638.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Bloomgren G, Richman S, Hotermans C, et al. Risk of natalizumab-associated progressive multifocal leukoencephalopathy. N Engl J Med. 2012;366(20):1870–80. doi: 10.1056/NEJMoa1107829.</mixed-citation><mixed-citation xml:lang="en">Bloomgren G, Richman S, Hotermans C, et al. Risk of natalizumab-associated progressive multifocal leukoencephalopathy. N Engl J Med. 2012;366(20):1870–80. doi: 10.1056/NEJMoa1107829.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Kothary N, Diak IL, Brinker A, et al. Progressive multifocal leukoencephalopathy associated with efalizumab use in psoriasis patients. J Am Acad Dermatol. 2011;65(3): 546–51. doi: 10.1016/j.jaad.2010.05.033.</mixed-citation><mixed-citation xml:lang="en">Kothary N, Diak IL, Brinker A, et al. Progressive multifocal leukoencephalopathy associated with efalizumab use in psoriasis patients. J Am Acad Dermatol. 2011;65(3): 546–51. doi: 10.1016/j.jaad.2010.05.033.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Molloy ES, Calabrese LH. Progressive multifocal leukoencephalopathy associated with immunosuppressive therapy in rheumatic diseases: evolving role of biologic therapies. Arthritis Rheum. 2012;64(9):3043–51. doi: 10.1002/art.34468.</mixed-citation><mixed-citation xml:lang="en">Molloy ES, Calabrese LH. Progressive multifocal leukoencephalopathy associated with immunosuppressive therapy in rheumatic diseases: evolving role of biologic therapies. Arthritis Rheum. 2012;64(9):3043–51. doi: 10.1002/art.34468.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Molloy ES, Calabrese LH. Progressive multifocal leukoencephalopathy associated with biologic therapy in rheumatic diseases: strengthening association with rituximab. Arthritis Rheum. 2014;66(Suppl 10):369.</mixed-citation><mixed-citation xml:lang="en">Molloy ES, Calabrese LH. Progressive multifocal leukoencephalopathy associated with biologic therapy in rheumatic diseases: strengthening association with rituximab. Arthritis Rheum. 2014;66(Suppl 10):369.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Belhassen-Garcia M, Rabano-Gutierrez A, Velasco-Tirado V, et al. Atypical progressive multifocal leukoencephalopathy in a patient with antisynthetase syndrome. Intern Med. 2015;54(5):519–24. doi: 10.2169/internalmedicine.54.2748</mixed-citation><mixed-citation xml:lang="en">Belhassen-Garcia M, Rabano-Gutierrez A, Velasco-Tirado V, et al. Atypical progressive multifocal leukoencephalopathy in a patient with antisynthetase syndrome. Intern Med. 2015;54(5):519–24. doi: 10.2169/internalmedicine.54.2748</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Kumar D, Bouldin TW, Berger RG. A case of progressive multifocal leukoencephalopathy in a patient treated with infliximab the University of North Carolina at Chapel Hill. Arthritis Rheum 2010; 62(11):3191–5. doi: 10.1002/art.27687</mixed-citation><mixed-citation xml:lang="en">Kumar D, Bouldin TW, Berger RG. A case of progressive multifocal leukoencephalopathy in a patient treated with infliximab the University of North Carolina at Chapel Hill. Arthritis Rheum 2010; 62(11):3191–5. doi: 10.1002/art.27687</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Yamamoto M, Takahashi H, Wakasugi H, et al. Leukoencephalopathy during administration of etanercept for refractory rheumatoid arthritis. Mod Rheumatol. 2007;17(1):72–4. doi:10.1007/s10165-006-0530-2.</mixed-citation><mixed-citation xml:lang="en">Yamamoto M, Takahashi H, Wakasugi H, et al. Leukoencephalopathy during administration of etanercept for refractory rheumatoid arthritis. Mod Rheumatol. 2007;17(1):72–4. doi:10.1007/s10165-006-0530-2.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Ray M, Curtis JR, Baddley JW. A case report of progressive multifocal leucoencephalopathy (PML) associated with adalimumab. Ann Rheum Dis. 2014;73(7):1429–30. doi: 10.1136/annrheumdis-2013-204978</mixed-citation><mixed-citation xml:lang="en">Ray M, Curtis JR, Baddley JW. A case report of progressive multifocal leucoencephalopathy (PML) associated with adalimumab. Ann Rheum Dis. 2014;73(7):1429–30. doi: 10.1136/annrheumdis-2013-204978</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Kobayashi K, Okamoto Y, Inoue H, et al. Leukoencephalopathy with cognitive impairment following tocilizumab for the treatment of rheumatoid arthritis. Intern Med. 2009;48(15):1307–9. Epub 2009 Aug 3. http://dx.doi.org/10.2169/internalmedicine.48.1926.</mixed-citation><mixed-citation xml:lang="en">Kobayashi K, Okamoto Y, Inoue H, et al. Leukoencephalopathy with cognitive impairment following tocilizumab for the treatment of rheumatoid arthritis. Intern Med. 2009;48(15):1307–9. Epub 2009 Aug 3. http://dx.doi.org/10.2169/internalmedicine.48.1926.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Lach B, Connolly B, Wü thrich C, Koralnik IJ. Inflammatory infratentorial progressive multifocal leukoencephalopathy in a patient with rheumatoid arthritis. Neuropathology. 2014;34(1):39–44. doi: 10.1111/neup.12045.</mixed-citation><mixed-citation xml:lang="en">Lach B, Connolly B, Wü thrich C, Koralnik IJ. Inflammatory infratentorial progressive multifocal leukoencephalopathy in a patient with rheumatoid arthritis. Neuropathology. 2014;34(1):39–44. doi: 10.1111/neup.12045.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Rahmlow M, Shuster EA, Dominik J, et al. Leflunomide-associated progressive multifocal leukoencephalopathy. Arch Neurol. 2008;65(11):1538–9. doi: 10.1001/archneur.65.11.1538.</mixed-citation><mixed-citation xml:lang="en">Rahmlow M, Shuster EA, Dominik J, et al. Leflunomide-associated progressive multifocal leukoencephalopathy. Arch Neurol. 2008;65(11):1538–9. doi: 10.1001/archneur.65.11.1538.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Molloy ES. PML and rheumatology: the contribution of disease and drugs. Cleve Clin J Med. 2011 Nov;78 Suppl 2:S28–32. doi: 10.3949/ccjm.78.s2.07.</mixed-citation><mixed-citation xml:lang="en">Molloy ES. PML and rheumatology: the contribution of disease and drugs. Cleve Clin J Med. 2011 Nov;78 Suppl 2:S28–32. doi: 10.3949/ccjm.78.s2.07.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Письмо Федеральной службы по надзору в сфере здравоохранения от 7 февраля 2014 г. № 02И-110/14 «О новых данных по безопасности лекарственного препарата Бенлиста». [The letter of the Federal service for supervision in the sphere of health № 02И-110/14 dated February, 07 2014 «About new data about safety of drug Benlysta». (in Russ.)]. http://www.garant.ru/products/ipo/prime/doc/70485650/#ixzz3OWJlGxDT .</mixed-citation><mixed-citation xml:lang="en">Письмо Федеральной службы по надзору в сфере здравоохранения от 7 февраля 2014 г. № 02И-110/14 «О новых данных по безопасности лекарственного препарата Бенлиста». [The letter of the Federal service for supervision in the sphere of health № 02И-110/14 dated February, 07 2014 «About new data about safety of drug Benlysta». (in Russ.)]. http://www.garant.ru/products/ipo/prime/doc/70485650/#ixzz3OWJlGxDT .</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Vinhas de Souza M, Keller-Stanislawski B, Blake K, et al. Drug-induced PML: a global agenda for a global challenge. Clin Pharmacol Ther. 2012;91(4):747–50. doi: 10.1038/clpt.2012.4.</mixed-citation><mixed-citation xml:lang="en">Vinhas de Souza M, Keller-Stanislawski B, Blake K, et al. Drug-induced PML: a global agenda for a global challenge. Clin Pharmacol Ther. 2012;91(4):747–50. doi: 10.1038/clpt.2012.4.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Steiner I, Berger JR. Update on progressive multifocal leukoencephalopathy. Curr Neurol Neurosci Rep. 2012;12(6):680–6. doi: 10.1007/s11910-012-0313-4.</mixed-citation><mixed-citation xml:lang="en">Steiner I, Berger JR. Update on progressive multifocal leukoencephalopathy. Curr Neurol Neurosci Rep. 2012;12(6):680–6. doi: 10.1007/s11910-012-0313-4.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Verheyen J, Maizus K, Feist E, et al. Increased frequency of JC-polyomavirus detection in rheumatoid arthritis patients treated with multiple biologics. Med Microbiol Immunol. 2015;204(5):613–8. doi: 10.1007/s00430-015-0390-5/</mixed-citation><mixed-citation xml:lang="en">Verheyen J, Maizus K, Feist E, et al. Increased frequency of JC-polyomavirus detection in rheumatoid arthritis patients treated with multiple biologics. Med Microbiol Immunol. 2015;204(5):613–8. doi: 10.1007/s00430-015-0390-5/</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">US Food and Drug Administration. Center for drug evaluation and research.Briefing document for the joint meeting of the Gastrointestinal Drugs Advisory Committee (CIDAC) and the Drug Safety and Risk Management Advisory Committee (DSaRMAC). December, 9, 2013. www.fda.gov/downloads/AdvisoryCommittees/CommitteesMeetingMaterials/Drugs/Gastroi</mixed-citation><mixed-citation xml:lang="en">US Food and Drug Administration. Center for drug evaluation and research.Briefing document for the joint meeting of the Gastrointestinal Drugs Advisory Committee (CIDAC) and the Drug Safety and Risk Management Advisory Committee (DSaRMAC). December, 9, 2013. www.fda.gov/downloads/AdvisoryCommittees/CommitteesMeetingMaterials/Drugs/Gastroi</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">ntestinalDrugs/AdvisoryCommittee/UCM377618.pdf.</mixed-citation><mixed-citation xml:lang="en">ntestinalDrugs/AdvisoryCommittee/UCM377618.pdf.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Borie D, Kremer JM. Considerations on the appropriateness of the John Cunningham virus antibody assay use in patients with rheumatoid arthritis. Semin Arthritis Rheum. 2015 Jun 17. pii: S0049–0172(15)00141–9. doi: 10.1016/j.semarthrit.2015.06.003</mixed-citation><mixed-citation xml:lang="en">Borie D, Kremer JM. Considerations on the appropriateness of the John Cunningham virus antibody assay use in patients with rheumatoid arthritis. Semin Arthritis Rheum. 2015 Jun 17. pii: S0049–0172(15)00141–9. doi: 10.1016/j.semarthrit.2015.06.003</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
