The association of social class and sibling number with skinfold thickness in London schoolboys.
D000293:Adolescent; D002648:Child; D005191:Family Characteristics; D006801:Humans; D008131:London; D008297:Male; D009765:Obesity / Q000453:epidemiology*; D009790:Occupations; D012867:Skin; D012885:Skinfold Thickness; D012923:Social Class