[1] Department of Surgery,
[2] Brown University School of Medicine,undefined
[3] Roger Williams Medical Center,undefined
[4] 825 Chalkstone Avenue,undefined
[5] Providence,undefined
[6] Rhode Island 02908-4735,undefined
[7] U.S.A.,undefined
[8] Department of Surgical Oncology,undefined
[9] Veterans Administration Medical Center,undefined
[10] Davis Park,undefined
[11] Providence,undefined
[12] Rhode Island 02908,undefined
[13] U.S.A.,undefined
[14] Department of Surgical Oncology,undefined
[15] Brown University School of Medicine,undefined
[16] Roger Williams Medical Center,undefined
[17] 825 Chalkstone Avenue,undefined
[18] Providence,undefined
[19] Rhode Island 02908,undefined
[20] U.S.A.,undefined