Deficiency of retinoblastoma protein leads to inappropriate S-phase entry, activation of E2F-responsive genes, and apoptosis - Alexandru Almasan; Yuxin Yin; Ruth E. Kelly; Eva Y.-H. P. Lee; Allan Bradley; Weiwei Li; Joseph R. Bertino; Geoffrey M. Wahl (Proceedings of the National Academy of Sciences of the United States of America, 1995)