Matching of chronic hospitalized patient groups: empirical failure of a methodologically "sound" procedure.
D000328:Adult; D002908:Chronic Disease; D003710:Demography; D005069:Evaluation Studies as Topic; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000628:therapy*; D008875:Middle Aged; D011581:Psychological Tests; D013223:Statistics as Topic