ATM and neoplasm: 6 Squatrito Squatrito M M Brennan Brennan CW CW Helmy Helmy K K Huse Huse JT JT Petrini Petrini JH JH Holland Holland EC EC Loss of ATM/Chk2/p53 pathway components accelerates tumor development and contributes to radiation resistance in gliomas Loss of ATM/Chk2/p53 pathway components accelerates tumor development and contributes to radiation resistance in gliomas Cancer Cell Cancer Cell 2010 2010 18 18 619 619 29 29 21156285 21156285