[1] Kyushu Univ, Grad Sch Med Sci, Dept Orthopaed Surg, Fukuoka, Japan
[2] Saga Handicapped Childrens Hosp, Dept Orthopaed Surg, Saga, Japan
[3] Chihaya Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[4] Karatsu Red Cross Hosp, Dept Orthopaed Surg, Saga, Japan
[5] Japan Community Healthcare Org, Dept Orthopaed Surg, Kyushu Hosp, Fukuoka, Japan
[6] Steel Mem Yawata Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[7] Japanese Red Cross Fukuoka Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[8] Natl Hosp Org Kyushu Med Ctr, Dept Orthopaed Surg, Fukuoka, Japan
[9] Saga Ken Med Ctr Koseikan, Dept Orthopaed Surg, Saga, Japan
[10] Aso Iizuka Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[11] Fukuoka City Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[12] Mutual Aid Assoc Publ Sch Teachers, Dept Orthopaed Surg, Kyushu Cent Hosp, Fukuoka, Japan
[13] Kyushu Rosai Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[14] Hamanomachi Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[15] Sada Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[16] Harasanshin Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[17] Saiseikai Yahata Gen Hosp, Dept Orthopaed Surg, Fukuoka, Japan
[18] Koga Hosp 21, Dept Orthopaed Surg, Fukuoka, Japan
[19] Natl Hosp Org Fukuoka Higashi Med Ctr, Dept Orthopaed Surg, Fukuoka, Japan
[20] Oita Univ, Hosp Informat Ctr, Fac Med, Oita, Japan