Authors: T Nishibe; Y Satoh; N Iwashiro; S Hirano; S Ohtake; H Ohkashiwa; S Watanabe; H Katoh; Y Okuda; T Tanabe Journal: Surg Today Date: 1997 Impact factor: 2.549
Authors: K Yasuura; H Okamoto; S Morita; Y Ogawa; M Sawazaki; A Seki; H Masumoto; A Matsuura; T Maseki; S Torii Journal: Ann Surg Date: 1998-03 Impact factor: 12.969