Grekhov, R, G Suleymanova, L Shilova, M Levkina, and T Rogatkina. 2018. “The Use of Biological Feedback in Complex Treatment of Patients With Rheumatoid Arthritis and Systemic Sclerosis”. KnE Life Sciences 4 (8), 337–345. https://doi.org/10.18502/kls.v4i8.3292.