p21WAF1is component of a positive feedback loop that maintains the p53 transcriptional program
Cell Cycle (2011) - Comments
pubmed: 21368573  doi: 10.4161/cc.10.6.15012  issn: 1551-4005  issn: 1538-4101 

Lisa Y. Pang, Mary Scott, Richard L. Hayward, Hisham Mohammed, C. Bruce A. Whitelaw, Graeme C.M. Smith, Ted R. Hupp