Clinical Investigation : Normal Tissue A Prospective Cohort Study on Radiation-induced Hypothyroidism : Development of an NTCP Model

A Prospective Cohort Study on Radiation-induced Hypothyroidism: Development of an NTCP Model Marjolein J. Boomsma, MD,* Hendrik P. Bijl, MD, PhD,* Miranda E.M.C. Christianen, MD,* Ivo Beetz, MD,* Olga Chouvalova, MD,* Roel J.H.M. Steenbakkers, MD, PhD,* Bernard F.A.M. van der Laan, MD, PhD,y Bruce H.R. Wolffenbuttel, MD, PhD,z Sjoukje F. Oosting, MD,x Cornelis Schilstra, PhD,* and Johannes A. Langendijk, MD, PhD* Departments of *Radiation Oncology, yOtorhinolaryngology/Head & Neck Surgery, zEndocrinology, and xMedical Oncology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands