Tocchi, A [Acquired abnormalities of the biliary tract. Preoperative diagnosis and surgical risk in the laparoscopic era]. [electronic resource] - Il Giornale di chirurgia - 18-21 p. digital Publication Type: English Abstract; Journal Article ISSN: 0391-9005 Subjects--Topical Terms: AgedBiliary Tract--abnormalitiesBiliary Tract Surgical ProceduresCholecystectomy, LaparoscopicCongenital Abnormalities--diagnosisFemaleHumansMaleMiddle AgedPreoperative CareRetrospective StudiesRisk Factors