the core duration to: Jonathan M. Head and Neck Medical Oncology, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. Head and Neck Medical Oncology the core values of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA. the core state to: Jonathan M. Head and Neck Medical Oncology, 1515 Holcombe Boulevard, Houston, Texas 77030, USA. Head and Neck Medical Oncology the core values of of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.