Received: 11 August 2018
Accepted: 5 December 2018
First Online: 27 December 2018
Ethics approval and consent to participate
: This study was approved by the IRB at rush university medical center in Chicago, IL, USA (ORA # 1473928).
: Not applicable
: SMP, PKL, JMK, CS, CJD, and HA have no financial or competing interests to disclose in relation to this work. DS is one of the Editors-in-Chief of Scoliosis and Spinal Disorders Journal but has no financial interests to disclose regarding this study.
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