Relaxation of Insulin-like Growth Factor 2 Imprinting and Discordant Methylation at KvDMR1 in Two First Cousins Affected by Beckwith-Wiedemann and Klippel-Trenaunay-Weber SyndromesMaria Pia Sperandeo, Andrea Riccio, Paola Ungaro et al.|The American Journal of Human Genetics|2000Cited by 33