Intermodality Variability in Gross Tumor Volume Delineation for Radiation Therapy Planning in Oropharyngeal Squamous Cell Carcinoma oleh Thaskeen S. Fathima, MD, Pooja Sethi, MD, Govindarajalou Ramkumar, MD, Dhanapathi Halanaik, MD, Smrithi Sathish, MD, Ninad Patil, MD