title: Clinical investigation of chronic diseases: its successful pursuit in an outpatient setting.
mesh_terms: D002908:Chronic Disease / Q000534:rehabilitation*; D049673:History, 20th Century; D006801:Humans; D008396:Maryland; D010044:Outpatient Clinics, Hospital / Q000458:organization & administration*; D013587:Syphilis / Q000266:history