William Feldman, Mark E Feldman, Departments of Paediatrics, Hospital for Sick Children, University of Toronto; and Scarborough Grace Hospital, Toronto, Ontario, Canada
Temboury MC, Otero A, Polanco I, Arribas E. Influence of breastfeeding on the infant's intellectual development. J Pediatr Gastroenterol Nutr 1994; 18: 32-36.
C du V, FloreyV, Leech AM, Blackhall A. Infant feeding and mental and motor development at 18 months of age in first born singletons. Int J Epidemiol 1995; 24: S21-S26.
Morrow-Tlucak M, Haude RH, Ernhart CB. Breast feeding and cognitive development in the first 2 years of life. Soc Sci Med 1988;
These are the intelligent people who came up with the idea that "intelligent mothers have intelligent babies, whether or not they breastfeed. However, intelligent mothers usually breastfeed."
Chicken or egg?