Epigenetic investigation of variably X chromosome inactivated genes in monozygotic female twins discordant for primary biliary cirrhosis

Michelle M. Mitchell, Ana Lleo, Luca Zammataro, Marlyn J. Mayo, Pietro Invernizzi, Nancy Bach, Shinji Shimoda, Stuart C. Gordon, Mauro Podda, M. Eric Gershwin, Carlo Selmi, Janine M. LaSalle