TY  - RPRT
TI  - [Rheumatic and nonrheumatic heart defects (the diagnostic problems)].
AU  - V A Nasonova
AU  - D Zh Khaĭdarova
AU  - S L Dzemeshkevich
AU  - A I Speranskiĭ
AU  - G P Kotel'nikova
PY  - 1991
UR  - https://pubmed.ncbi.nlm.nih.gov/2068656/
ID  - 2068656
ER  -