[On problems of epidemiological research in progressive polyarthritis in the USSR and Czechoslovakia].
D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D003604:Czechoslovakia; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D014586:USSR
K otázkam epidemiologického výskumu progresívnej polyartritídy v SSSR a CSSR.