Human aging-associated DNA hypermethylation occurs preferentially at bivalent chromatin domains - Rakyan,VK; Down,TA; Maslau,S; Andrew,T; Yang,T-P; Beyan,H; Whittaker,P; McCann,OT; Finer,S; Valdes,AM; Leslie,RD; Deloukas,P; et al. (GENOME RESEARCH, 2010)