For citations:

Bartosh-Zelenaya S.Yu., Evsikova I.A., Mamaeva O.P., Naiden T.V., Scherbak S.G. Cardiorespiratory indices stress echocardiographic test in young people with sarcoidosis in the early stages. Medical alphabet. 2019;1(8):35-41. (In Russ.) https://doi.org/10.33667/2078-5631-2019-1-8(383)-35-41