For citations:

Sitnikova M.Y., Lelyavina T., Fedotov P.A., Trukshina M.A., Dorofeikov V.V., Shlyakhto E.V. Risk stratification in ambulatory patients with heart failure and chronic obstructive pulmonary disease: evaluation of predictive value of standard prognostic markers for 5-years survival. "Arterial’naya Gipertenziya" ("Arterial Hypertension"). 2009;15(2):132-137. (In Russ.) https://doi.org/10.18705/1607-419X-2009-15-2-132-137