8Kasum CM, Jacobs DR Jr, Nicodemus K, et al. Dietary risk factors for upper aerodigestive tract cancers [J]. lnt J Cancer; 2002, 99 (2): 267-272.
9Van Rensburg SJ, Hall JM, Gathercole PS. Inhibition of esophageal carcinogenesis in corn-fed rats by riboflavin, nicotinic acid, selenium, molybdenum, zinc, and magnesium [J]. Nutr Cancer, 1986, 8 (1): 163-170.
