The BH3-only protein Puma plays an essential role in p53-mediated apoptosis of chronic lymphocytic leukemia cells. - Zhu, Hai-Jia; Liu, Ling; Fan, Lei; Zhang, Li-Na; Fang, Cheng; Zou, Zhi-Jian; Li, Jian-Yong; Xu, Wei (Leukemia & Lymphoma, 2013)