00489naa#a2200169#i#450# EN\\bibl\15390 20241201130935.7 2409-3750 20170210b2017####ek#y0engy0150####ca RUS RU ACQUIRED HEART VALVULAR DISEASE. PART II Journal article Tula LLC Information and publishing center Innovations and investments 2017 0 с. Journal article local Belyaeva Elena naukaru.ru