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Hofmann AF. Medical dissolution of gallstones by oral bile acid therapy. American Journal of Surgery. September 1989, 158 (3): 198–204. PMID 2672842. doi:10.1016/0002-9610(89)90252-3.
Jüngst C, Kullak-Ublick GA, Jüngst D. Gallstone disease: Microlithiasis and sludge. Best Practice & Research. Clinical Gastroenterology. 2006, 20 (6): 1053–1062. PMID 17127187. doi:10.1016/j.bpg.2006.03.007.