For citations:
Novikova D.S., Udachkina H.V., Kirillova I.G., Popkova T.V. Chronic Heart Failure in Rheumatoid Arthritis Patients (Part II): Difficulties of Diagnosis. Rational Pharmacotherapy in Cardiology. 2018;14(6):870-878. https://doi.org/10.20996/1819-6446-2018-14-6-879-886