UTILITY OF SERUM BIOMARKERS FOR DIAGNOSIS OF COMMUNITY-ACQUIRED PNEUMONIA IN PATIENTS WITH CONCOMITANT CHRONIC HEART FAILURE Article Kobalava Z.D., Bobylev A.A., Rachina S.A., Avdeev S.N., Omar S., Zorya O.T. European Journal of Heart Failure. Elsevier Science Publishing Company, Inc.. Vol. 20. 2018. P. 98-98