Authors: Bart N Green; Claire D Johnson; Scott Haldeman; Edward J Kane; Michael B Clay; Erin A Griffith; Juan M Castellote; Matthew Smuck; Shanmuganathan Rajasekaran; Eric L Hurwitz; Margareta Nordin; Kristi Randhawa; Hainan Yu Journal: Eur Spine J Date: 2018-08-11 Impact factor: 3.134