Authors: John M Levenick; John E Sutton; Kerrington D Smith; Stuart R Gordon; Arief Suriawinata; Timothy B Gardner Journal: Dig Dis Sci Date: 2012-05-19 Impact factor: 3.199
Authors: L Casetti; C Bassi; R Salvia; G Butturini; R Graziani; M Falconi; L Frulloni; S Crippa; G Zamboni; P Pederzoli Journal: World J Surg Date: 2009-12 Impact factor: 3.352