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Walker, CS, Yapuncich, GS, Sridhar, S, Cameron, N, and Churchill, SE. Journal of Human Evolution 115( February 2018): 65-77. D, Williams, SA, Churchill, SE, Berger, LR, and Hawks, J. Journal of femoral opinion( November 20, 2017). Garvin, HM, Elliott, MC, Delezene, LK, Hawks, J, Churchill, SE, Berger, LR, and Holliday, TW.