Analysis of Heritability and Shared Heritability Based on Genome-Wide Association Studies for Thirteen Cancer Types. - Sampson JN; Wheeler WA; Yeager M; Panagiotou O; Wang Z; Berndt SI; Lan Q; Abnet CC; Amundadottir LT; Figueroa JD; Landi MT; Mirabello L; et al. (Journal of the National Cancer Institute, 2015)