For citations:

Batkaeva NV, Korotaeva TV, Batkaev EA. Prevalence of psoriatic arthritis and comorbidities in patients with severe psoriasis: Data of a retrospective analysis of a hospital cohort. Sovremennaya Revmatologiya=Modern Rheumatology Journal. 2017;11(1):19-22. (In Russ.) https://doi.org/10.14412/1996-7012-2017-1-19-22