Do these look like no sources to you?
Again, learn to read.
1. Cuatrecasas P, Lockwood DH, Caldwell JR. Lactase deficiency in the adult: a common occurrence. Lancet. 1965;1:14-18.
2. Huang SS, Bayless TM. Milk and lactose intolerance in healthy Orientals. Science. 1968;160:83-84.
3. Woteki CE, Weser E, Young EA. Lactose malabsorption in Mexican-American adults. Am J Clin Nutr. 1977;30:470-475.
4. Newcomer AD, Gordon H, Thomas PJ, McGill DG. Family studies of lactase deficiency in the American Indian. Gastroenterology. 1977;73:985-988.
5. Mishkin S. Dairy sensitivity, lactose malabsorption, and elimination diets in inflammatory bowel disease. Am J Clin Nutr. 1997;65:564-567.
6. Scrimshaw NS, Murray EB. The acceptability of milk and milk products in populations with a high prevalence of lactose intolerance. Am J Clin Nutr. 1988;48:1083-1085.
7. Hertzler SR, Huynh BCL, Savaiano DA. How much lactose is low lactose? J Am Dietetic Asso. 1996;96:243-246.
8. Looker AC, Johnston CC, Wahner HW, et al. Prevalence of low femoreal bone density in older U.S. women from NHANES III. J Bone and Mineral Research. 1995;10:796-802.
9. Abelow BJ, Holford TR, Insogna KL. Cross-cultural association between dietary animal protein and hip fracture: a hypothesis. Calif Tissue Int. 1992;50:14-18.
10. Nordin BEC, Need AG, Morris HA, Horowitz M. The nature and significance of the relationship between urinary sodium and urinary calcium in women. J Nutr. 1993;123:1615-1622.
11. Hopper JL, Seeman E. The bone density of female twins discordant for tobacco use. N Engl J Med. 1994;330:387-392.
12. Pennington JAT. Bowes and Churches Food Values of Portions Commonly Used, 17th ed. New York: Lippincott, 1998.
13. Iacono G, Cavataio F, Montalto G, et al. Intolerance of cow's milk and chronic constipation in children. N Engl J Med. 1998;339:110-114.
14. Scott FW. Cow milk and insulin-dependent diabetes mellitus: is there a relationship? Am J Clin Nutr. 1990;51:489-491.
15. Karjalainen J, Martin JM, Knip M, et al. A bovine albumin peptide as a possible trigger of insulin-dependent diabetes mellitus. N Engl J Med. 1992;327:302-307.
16. Cramer DW, Harlow BL, Willet WC. Galactose consumption and metabolism in relation to the risk of ovarian cancer. Lancet. 1989;2:66-71.
17. Simoons FJ. A geographic approach to senile cataracts: possible links with milk consumption, lactase activity, and galactose metabolism. Digestive Disease and Sciences. 1982;27:257-264.
18. Jacobus CH, Holick MF, Shao Q, et al. Hypervitaminosis D associated with drinking milk. N Engl J Med. 1992;326(18):1173-1177.
19. Holick MF. Vitamin D and bone health. J Nutr 1996;126(suppl);1159S-64S.
20. Weaver CM, Plawecki KL. Dietary calcium: adequacy of a vegetarian diet. Am J Clin Nutr. 1994;59(suppl):1238S-1241S.
21. Heaney RP, Weaver CM. Calcium absorption from kale. Am J Clin Nutr. 1990;51:656-657
I can read, I just didn't bother to.
YOU. SHALL NOT, PASS!