論文（英文）
Impact of surgeon and hospital volumes on short-term postoperative complications after radical hysterectomy for cervical cancer.
Yasunaga H, Nishii O, Hirai Y, Ochiai K, Matsuyama Y, and Ohe K. Impact of surgeon and hospital volumes on short-term postoperative complications after radical hysterectomy for cervical cancer. The Journal of Obstetrics and Gynaecology Research 2009; 35: 699-705.