II. METHODOLOGY FOR STUDIES OF LONG-TERM CARE. USE OF THE LONGITUDINAL DESIGN IN STUDIES OF LONG-TERM ILLNESS: SOME ADVANTAGES AND LIMITATIONS.
D002908:Chronic Disease; D006801:Humans; D008134:Long-Term Care; D010044:Outpatient Clinics, Hospital; D013223:Statistics as Topic
CHRONIC DISEASE; HOSPITAL OUTPATIENT CLINICS; STATISTICS