00488naa#a2200169#i#450# EN\\bibl\13883 20241002081752.3 2409-3750 20161115b2016####ek#y0engy0150####ca RUS RU ACQUIRED HEART VALVULAR DISEASE (PART I) Journal article Tula LLC Information and publishing center Innovations and investments 2016 0 с. Journal article local Belyaeva Elena zh-szf.ru