2Hafif A, Gut man M, Kaplan O, et al . The management of acute cholecystitis in elderly patiengts [J]. Am Surg, 1991,57( 10): 648 - 65.
3Steenbergen W V, Rigausts H, Ponette E, et al .percutaneous transhepatie choleetostomy for acute complicated calculous cholecystitis in elderly patients [J]. J Am Geriatr Soc, 1993,41 : 157 - 162.