5Fenyo G, Boijsen M, Enochsson L, et al. Acute abdomen calls for considerable care resources. Analysis of 3727 in-patients in the county of Stockholm during the first quarter of 1995. Lakartidningen,2000,97(37) :4008.
6Iarumov N, Viiachki I. Acute surgical abdomen in middle and old age. Khirurgiia (Sofiia) ,1998,51(4) :51.
7Kizer KW and Vassar MJ. Emergency department diagnosis of abdominal disorders in the elderly. Am J Emerg Med,1998,16(4) :357.
8Miettinen P, Pasanen P, Salonen A,et al. The outcome of elderly patients after operation for acute abdomen. Ann Chir Gynaecol, 1996,85(1) :11.
9Adedeji OA, McAdam WA. Murphy's sign, acute cholecystitis and elderly people. J R Coll Surg Edinb, 1996,41(2) :88.
10Linthoudt H, Filez L and Pelemans W. Acute intestinal obstruction in an elderly patient. Tijdschr Gerontol Geriatr,1996,27(6) :255.