A survey of primary care in London.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005006:Ethnicity; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008131:London; D008297:Male; D008875:Middle Aged; D009026:Mortality; D011247:Pregnancy; D011320:Primary Health Care / Q000639:trends*; D012931:Social Environment; D012959:Socioeconomic Factors