DivisionofGeneralSurgery;
DepartmentofSurgery;
Tri-ServiceGeneralHospital;
NationalDefenseMedicalCenter;
Taipei;
Taiwan;
China;
DivisionofColorectalSurgery;
DepartmentofSurgery;
Tri-ServiceGeneralHospital;
NationalDefenseMedicalCenter;
Taipei;
Taiwan;
China;