Accepted Manuscript McGregor’s Slope and Slope of Line of Sight: Two Surrogate Markers for Chin-Brow Vertical Angle in the Setting of Cervical Spine Pathology Michael J Moses MD , Jared C Tishelman BA , Peter L Zhou BA , John Y Moon BS , Bryan M Beaubrun BA , Aaron J Buckland MBBS, FRACS , Themistocles S Protopsaltis MD PII: S1529-9430(19)30168-8 DOI: https://doi.org/10.1016/j.spinee.2019.04.021 Reference: SPINEE 57910 To appear in: The Spine Journal Received date: 25 October 2018 Revised date: 29 April 2019 Accepted date: 30 April 2019 Please cite this article as: Michael J Moses MD , Jared C Tishelman BA , Peter L Zhou BA , John Y Moon BS , Bryan M Beaubrun BA , Aaron J Buckland MBBS, FRACS , Themistocles S Protopsaltis MD , McGregor’s Slope and Slope of Line of Sight: Two Surrogate Markers for Chin-Brow Vertical Angle in the Setting of Cervical Spine Pathology, The Spine Journal (2019), doi: https://doi.org/10.1016/j.spinee.2019.04.021 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.