∗Spine Center and Department of Orthopaedic Surgery, Pohang Semyeng Christianty Hospital, Pohang, Korea
†Department of Orthopaedic Surgery, Yeungnam University Hospital, Daegu, Korea
‡Spine Center and Department of Orthopaedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Sungnam, Korea.
Address correspondence and reprint requests to Gun Woo Lee, MD, Department of Orthopaedic Surgery and Spine Center, Yeungnam University Hospital, 170, Hyeonchung-ro, Nam-gu, Daegu 42415, Republic of Korea; E-mail: [email protected]
Received 30 January, 2016
Revised 13 April, 2016
Accepted 26 April, 2016
The device(s)/drug(s) is/are FDA-approved or approved by corresponding national agency for this indication.
No funds were received in support of this work.
No relevant financial activities outside the submitted work.
