Breast versus formula feeding.
D000328:Adult; D001835:Body Weight; D001903:Bottle Feeding / Q000523:psychology*; D001942:Breast Feeding; D002170:Canada; D005260:Female; D006801:Humans; D007223:Infant; D007224:Infant Care; D007225:Infant Food; D007231:Infant, Newborn; D008875:Middle Aged; D012944:Social Support; D012959:Socioeconomic Factors