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Biliary sludge.
Ko CW, Sekijima JH, Lee SP. Ko CW, et al. Ann Intern Med. 1999 Feb 16;130(4 Pt 1):301-11. doi: 10.7326/0003-4819-130-4-199902160-00016. Ann Intern Med. 1999. PMID: 10068389 Free article. Review.
Gallstone formation. Local factors.
Ko CW, Lee SP. Ko CW, et al. Gastroenterol Clin North Am. 1999 Mar;28(1):99-115. doi: 10.1016/s0889-8553(05)70045-5. Gastroenterol Clin North Am. 1999. PMID: 10198780 Review.