Castillo-Fernandez JE, Spector TD, Bell JT, “Epigenetics of discordant monozygotic twins: implications for disease,” Genome Medicine, 2014, 6:7, doi: 10.1186/s13073-014-0060-z. ABSTRACT: Monozygotic (MZ) twins share nearly all of their genetic variants and many similar environments before and after birth. However, they…