title: [Etiologic and pathogenetic factors of chronic polyarthritis. I. May conclusions be drawn for etiologic factors from epidemiologic data?].
mesh_terms: D000328:Adult; D000367:Age Factors; D001172:Arthritis, Rheumatoid / Q000453:epidemiology / Q000209:etiology / Q000235:genetics; D001327:Autoimmune Diseases / Q000150:complications; D002908:Chronic Disease; D004781:Environmental Exposure; D005260:Female; D005860:Germany, West; D006801:Humans; D008297:Male; D008875:Middle Aged; D044469:Racial Groups; D012737:Sex Factors; D012923:Social Class; D012959:Socioeconomic Factors
vernacular_title: Atiologische und pathogenetische Faktoren der chronischen Polyarthritis. I. Können aus epidemiologischen Erhebungen Rückschlüsse auf ätiologische Faktoren gezogen worden?