Multicenter analysis of the efficacy of early cholecystectomy and preoperative cholecystostomy for severe acute cholecystitis: a retrospective study of data from the multi-institutional database of the Hiroshima Surgical Study Group of Clinical Oncology. - Abe T; Kobayashi T; Kuroda S; Hamaoka M; Mashima H; Onoe T; Honmyo N; Oishi K; Ohdan H (BMC gastroenterology, 2024)