Due, Anne K., et al. “Methodologies for Localizing Loco-Regional Hypopharyngeal Carcinoma Recurrences in Relation to FDG-PET Positive and Clinical Radiation Therapy Target Volumes”. Acta Oncologica, vol. 49, no. 7, Oct. 2010, pp. 984-90, doi:10.3109/0284186X.2010.498833.