1. The development of infant-mother attachment;Ainsworth,1973
2. Protein and energy during weaning;Axelsson;Adv Pediatr,1992
3. Management of breast feeding;Barnes;JAMA,1953
4. Infants and Mothers: Differences in Development.;Brazelton,1969
5. Feeding infants and toddlers study: Improvements needed in meeting infant feeding recommendations;Briefel;J Am Diet Assoc,2004