[Problematic and thematic plan of research in the area of rheumatology in 1971].
D005544:Forecasting; D006801:Humans; D012213:Rheumatic Fever; D012214:Rheumatic Heart Disease; D014586:USSR
Problemno-tematicheskiĭ plan issledovaniĭ v oblasti revmatologii na 1971 g.