Characterizing tumor heterogeneity with functional imaging and quantifying high-risk tumor volume for early prediction of treatment outcome: cervical cancer as a model. - Mayr NA; Huang Z; Wang JZ; Lo SS; Fan JM; Grecula JC; Sammet S; Sammet CL; Jia G; Zhang J; Knopp MV; Yuh WT (International journal of radiation oncology, biology, physics, 2012)