References
- Rosenthal SR, Padron CZ: Nutrition assessment of the young child, in Simko MD, Cowell C, Hreha MS (eds): Practical Nutrition: A Quick Reference for the Health Care Practitioner. Rockville, MD, Aspen Publishers, 1989
- Skinner S, Martens RA: The Milk Sugar Dilemma: Living With Lactose Intolerance. East Lansing, MI, Medi-Ed Press, 1985