For citations:
Petrov A.V., Krutikov E.S., Gaffarova A.S., Petrov A.A., Gorlov A.A. Damage index changes in patients with systemic sclerosis: a retrospective analysis over a five-year period. Rheumatology Science and Practice. 2020;58(1):42-47. (In Russ.) https://doi.org/10.14412/1995-4484-2020-42-47