Bennion LJ, Ginsberg RL, Gernick MB, Bennett PH (janeiro de 1976). «Effects of oral contraceptives on the gallbladder bile of normal women». N. Engl. J. Med. 294 (4): 189–92. PMID1244533. doi:10.1056/NEJM197601222940403
Iser JH, Dowling H, Mok HY, Bell GD (agosto de 1975). «Chenodeoxycholic acid treatment of gallstones. A follow-up report and analysis of factors influencing response to therapy». The New England Journal of Medicine. 293 (8): 378–83. PMID1152936. doi:10.1056/NEJM197508212930804
Alan F. Hofmann; Johnson L. Thistle; Peter D. Klein; Patricia A. Szczepanik; Paulina Y. S. Yu (1978). «Chenotherapy for Gallstone Dissolution, II. Induced Changes in Bile Composition and Gallstone Response». JAMA. 239 (12): 1138–1144. PMID628065. doi:10.1001/jama.1978.03280390034017
Bennion LJ, Ginsberg RL, Gernick MB, Bennett PH (janeiro de 1976). «Effects of oral contraceptives on the gallbladder bile of normal women». N. Engl. J. Med. 294 (4): 189–92. PMID1244533. doi:10.1056/NEJM197601222940403
Iser JH, Dowling H, Mok HY, Bell GD (agosto de 1975). «Chenodeoxycholic acid treatment of gallstones. A follow-up report and analysis of factors influencing response to therapy». The New England Journal of Medicine. 293 (8): 378–83. PMID1152936. doi:10.1056/NEJM197508212930804
Alan F. Hofmann; Johnson L. Thistle; Peter D. Klein; Patricia A. Szczepanik; Paulina Y. S. Yu (1978). «Chenotherapy for Gallstone Dissolution, II. Induced Changes in Bile Composition and Gallstone Response». JAMA. 239 (12): 1138–1144. PMID628065. doi:10.1001/jama.1978.03280390034017