[Are girls breast fed longer than boys?].
D000328:Adult; D000368:Aged; D001942:Breast Feeding; D001943:Breast Neoplasms / Q000209:etiology*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012737:Sex Factors; D013997:Time Factors
Ammas flickor längre än pojkar?