論文（英文）
High-volume surgeons in regard to reductions in operating time, blood loss, and postoperative complications for total hip arthroplasty.
Yasunaga H, Tsuchiya K, Matsuyama Y, Ohe K. High-volume surgeons in regard to reductions in operating time, blood loss, and postoperative complications for total hip arthroplasty. Journal of Orthopaedic Science 2009; 14(1): 3-9.