海量图书期刊资源，随时随地畅享阅读乐趣
Treatment of early gastric cancer in the elderly patient: results of EMR and gastrectomy at a national referral center in JapanTsuyoshi Etoh; Hitoshi Katai; Takeo Fukagawa; Takeshi Sano; Ichiro Oda; Takuji Gotoda; Kimio Yoshimura; Mitsuru Sasako · 2005