[Data processing in medical research: factor analysis in a clinical study of rheumatoid arthritis].
D001172:Arthritis, Rheumatoid / Q000175:diagnosis / Q000188:drug therapy; D002986:Clinical Trials as Topic; D001330:Electronic Data Processing; D005163:Factor Analysis, Statistical; D005859:Germany, East; D006801:Humans; D012106:Research
Datenverarbeitung in der medizinischen Forschung: Faktorenanalyse einer klinischen Rheumatoid-Arthritis-Studie.