Article History
Received: 10 October 2018
Revised: 14 February 2019
Accepted: 26 February 2019
First Online: 9 March 2019
Compliance with ethical standard
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: Drs. Jain, Singh, and Karile have no conflicts of interest. Dr. Berven has financial relationships with Medtronic, Stryker, Globus, Medicrea, Providence Medical, and GreenSun.