Cholelithiasis in cirrhotic patients: analysis of cholelithiasis among patients with liver cirrhosis in sao paulo, brazil - Genzini, T; Miranda, M. P.; Silva, A. O.; Souza, C P M; Silva, F A A; Melo, C R; Santos, T E; Cardoso, E S; Santo, G C; Lee, M P; D'albuquerque, Luiz Augusto Carneiro (Arquivos de Gastroenterologia, 1996)