Growth and relative stability of the proportion permanently sick in English family health service authorities, 1981-91.
Lloyd
D C
DC
Prescribing Research Unit, University of Leeds.
Scrivener
G
G
D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease / Q000453:epidemiology*; D004739:England / Q000453:epidemiology; D006801:Humans; D008875:Middle Aged; D015995:Prevalence