[1] University Medical Center Utrecht,Department of Head and Neck Surgical Oncology
[2] University Medical Center Utrecht,Department of Oral and Maxillofacial Surgery
[3] University Medical Center Utrecht,Department of Pathology
[4] University Medical Center Groningen,Department of Pathology and Medical Biology
[5] University Medical Center Utrecht,Department of Radiology and Nuclear Medicine
[6] University Medical Center Utrecht,Department of Medical Oncology