4Jorgensen T, Jorgensen LM. Gallstones and diet in a Danish population. Scand J Gastroenterol, 1989, 24:821～826.
5Misciagna G, Centonze S, Leoci C, Guerra V, Cisternino AM, Ceo R, Trevisan M. Diet, physical activity, and gallstones -- a population-based, case-control study in southern Italy. Am J Clin Nutr, 1999, 69: 120～126.
6Caroli-Bosc FX, Deveau C, Peten EP, Delabre B, Zanaldi H, Hebuterne X, Hastier P, Viudes F, Belanger F, Caroli-Bosc C, Harris A, Hardion M, Rampal P, Delmont JP.Cholelithiasis and dietary risk factors: an epidemiologic investigation in Vidauban, Southeast France. General Practitioner's Group of Vidauban. Dig Dis Sci, 1998, 43:2131～2137.
7Prevalence of gallstone disease in an Italian adult female population. Rome Group for the Epidemiology and Prevention of Cholelithiasis (GREPCO). Am J Epidemiol,1984, 119: 796～805.
8Maurer KR, Everhart JE, Knowler WC, Shawker TH,Roth HP. Risk factors for gallstone disease in the Hispanic populations of the United States. Am J Epidemiol,1990, 131: 836～844.
9Thijs C, Knipschild P, Leffers P. Pregnancy and gallstone disease: an empiric demonstration of the importance of specification of risk periods. Am J Epidemiol, 1991, 134:186～195.
10Grodstein F, Colditz GA, Hunter DJ, Manson JE, Willett WC, Stampfer MJ. A prospective study of symptomatic gallstones in women: relation with oral contraceptives and other risk factors. Obstet Gynecol, 1994, 84: 207～214.
