Bulhões, A.C.; Goldani, H.A.S.; Oliveira, F.S.; Matte, U.S.; Mazzuca, R.B.; Silveira, T.R. (2007). "Correlation between lactose absorption and the C/T-13910 and G/A-22018 mutations of the lactase-phlorizin hydrolase (LCT) gene in adult-type hypolactasia". Brazilian Journal of Medical and Biological Research. 40 (11): 1441–6. doi:10.1590/S0100-879X2007001100004. PMID17934640.
Bulhões, A.C.; Goldani, H.A.S.; Oliveira, F.S.; Matte, U.S.; Mazzuca, R.B.; Silveira, T.R. (2007). "Correlation between lactose absorption and the C/T-13910 and G/A-22018 mutations of the lactase-phlorizin hydrolase (LCT) gene in adult-type hypolactasia". Brazilian Journal of Medical and Biological Research. 40 (11): 1441–6. doi:10.1590/S0100-879X2007001100004. PMID17934640.
Yoshida Y, Sasaki G, Goto S, Yanagiya S, Takashina K (1975). "Studies on the etiology of milk intolerance in Japanese adults". Gastroenterol. Jpn. 10 (1): 29–34. PMID1234085.
Antonio Carroccio; และคณะ (มีนาคม 1998). "Sideropenic Anemia and Celiac Disease (One Study, Two Points of View)". Digestive Diseases and Sciences. 43: 673–678. eISSN1573-2568.
Burgio G. R.; และคณะ (1984). "Prevalence of primary adult lactose malabsorption and awareness of milk intolerance in Italy". American Journal of Clinical Nutrition. 39: 100–104. eISSN1938-3207.