For citations:

Petrov A.V., Shevnina Y.O., Gaffarova A.S., Petrov A.A. Dynamic of radiographic and ultrasonographic indices of hip joints in patients with ankylosing spondylitis under treatment with tumor necrotic factor ― alpha inhibitors. Medical alphabet. 2019;2(37):54-58. (In Russ.) https://doi.org/10.33667/2078-5631-2019-2-37(412)-54-58