Radiotherapy for Advanced Hodgkin Lymphoma with Initial Bulk: A Combined Analysis of Two Randomized Trials oleh Ryan T. Hughes, MD, Niema B. Razavian, MD, Rachel F. Shenker, MD, Christopher R. Kelsey, MD, Sydney Smith, MSPH, Ralph B. D'Agostino, Jr, PhD, Karen M. Winkfield, MD, PhD