Bennion LJ, Ginsberg RL, Gernick MB, Bennett PH (Januar 1976). »Effects of oral contraceptives on the gallbladder bile of normal women«. N. Engl. J. Med. 294 (4): 189–192. doi:10.1056/NEJM197601222940403. PMID1244533.
Iser JH, Dowling H, Mok HY, Bell GD (Avgust 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. doi:10.1056/NEJM197508212930804. PMID1152936.
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. doi:10.1001/jama.1978.03280390034017. PMID628065.
Bennion LJ, Ginsberg RL, Gernick MB, Bennett PH (Januar 1976). »Effects of oral contraceptives on the gallbladder bile of normal women«. N. Engl. J. Med. 294 (4): 189–192. doi:10.1056/NEJM197601222940403. PMID1244533.
Iser JH, Dowling H, Mok HY, Bell GD (Avgust 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. doi:10.1056/NEJM197508212930804. PMID1152936.
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. doi:10.1001/jama.1978.03280390034017. PMID628065.