Ectomorphy in American adults: analyses by sex, race and age.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001827:Body Height; D001835:Body Weight; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D044469:Racial Groups; D012737:Sex Factors; D013008:Somatotypes; D014481:United States