*Department of Spine Center
†Department of Orthopedic Surgery
‡Department of Radiology
§Division of Biostatistics, Clinical Research Center, Aichi Medical University, Nagakute, Aichi, Japan
¶Department of Orthopedic Surgery, Washington University, St. Louis, MO
||Department of Orthopedic Surgery, Nagoya University, Nagoya, Aichi, Japan.
Address correspondence and reprint requests to Norimitsu Wakao, MD, PhD, Department of Spine Center, Aichi Medical University, Nagakute 21, Aichi 480-1195, Japan; E-mail: [email protected]
Received 10 March, 2015
Revised 13 August, 2015
Accepted 31 August, 2015
The manuscript submitted does not contain information about medical device(s)/drug(s).
JSPS KAKENHI Grant Number 15K10423 (2015) funds were received in support of this work.
Relevant financial activities outside the submitted work: board membership, expert testimony, grants, payment for lectures, royalties, stocks, travel/accommodations/meeting expenses.