1. Jensen, R.G., M.M. Hagerty and K.E. McMahon, Am. J. Clin. Nutr. 31:990 (1978).
2. NRC-NAS, A Selected Annotated Bibliography on Breast Feeding, Natl. Acad. Sci., Washington, DC 1978.
3. Jelliffe, D.B., and E.F.P. Jelliffe, “Human Milk in the Modern World,” Oxford Univ. Press., New York, 1978.
4. Vorherr, H., in “Lactation, A Comprehensive Treatise,” edited by B.L. Larson, Academic Press, Inc., New York, 1978, p. 182.
5. Peaker, M., in “Comparative Aspects of Lactation,” Academic Press, New York, 1977, pp. 43 and 221.