Circulating Tumor Cell Count Is a Prognostic Factor in Metastatic Colorectal Cancer Patients Receiving First-Line Chemotherapy Plus Bevacizumab: A Spanish Cooperative Group for the Treatment of Digestive Tumors StudyJavier Sastre, Eduardo Díaz‐Rubio, Auxiliadora Gómez‐España et al.|The Oncologist|2012Cited by 88