Extended breastfeeding in the United States.
Goldfarb
J
J
D000367:Age Factors; D001942:Breast Feeding / Q000523:psychology; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D009034:Mother-Child Relations; D009769:Object Attachment; D014481:United States; D014886:Weaning