1. Prevalence of gallstones in the neonatal period;Wendtland-Born;Ultraschall Med,1997
2. Gallstone prevalence and gallbladder volume in children and adolescents: an epidemiological ultrasonographic survey and relationship to body mass index;Palasciano;Am J Gastroenterol,1989
3. Cholelithiasis in Down syndrome;Toscano;Arch Dis Child,2001
4. Prevalence of gallstone disease in a general population of Okinawa, Japan;Nomura;Am J Epidemiol,1988
5. Gallbladder disease and cholelithiasis;Stringer,2002