[Rheumatoid arthritis among rural population over 60 years of age].
D000367:Age Factors; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011044:Poland; D012423:Rural Health
Reumatoidalne zapalenie stawów wśród mieszkańców wsi powyzej 60 roku zycia.