For citations:
Erdes Sh.F., Bochkova A.G., Dubinina T.V., Lapshina S.A., Myasoutova L.I., Rumyantseva O.A., Salikhov I.G. PROJECT OF WORKING CLASSIFICATION OF ANKYLOSING SPONDILYTIS. Rheumatology Science and Practice. 2013;51(6):604-8. (In Russ.) https://doi.org/10.14412/1995-4484-2013-604-8