For citations:

Agafonova EM, Rumyantseva DG, Smirnov AV, Erdes S. Time course of radiographic hip joint changes in patients with early axial spondyloarthritis. Sovremennaya Revmatologiya=Modern Rheumatology Journal. 2021;15(1):46-50. (In Russ.) https://doi.org/10.14412/1996-7012-2021-1-46-50