Systematic review / meta-analysis
Fernandez M, Moore C, Tan J, Lian D, Nguyen J, Bacon A, Christie B, Shen I, Waldie T, Simmonds M, Hebert J. Spinal manipulation for the management of cervicogenic headache: A systematic review and meta-analysis. European Journal of Pain. 2020;24(9):1687-1702.