Dianrong XIU ; Saomei LU ; Shibing SONG
Chinese Journal of Minimally Invasive Surgery 2001;0(01):-
0 05) and incidence rate of postoperative complications (0 vs.0). Postoperative hospital stay in group experiment was longer than that in group control ((2 2?0 4)d vs. (2?0)d, t =2 958, P