Distinct roles of microRNA-1 and -499 in ventricular specification and functional maturation of human embryonic stem cell-derived cardiomyocytes. oleh Ji-Dong Fu, Stephanie N Rushing, Deborah K Lieu, Camie W Chan, Chi-Wing Kong, Lin Geng, Kitchener D Wilson, Nipavan Chiamvimonvat, Kenneth R Boheler, Joseph C Wu, Gordon Keller, Roger J Hajjar, Ronald A Li