In 1950, patients with Hodgkin lymphoma had a median survival time of 4 years and a 5-year relative survival rate of 29% (1). Since the introduction of radiation therapy and chemotherapy for Hodgkin lymphoma in the 1960s and 1970s, the 5-year relative survival rate is more than 85% (2), and these patients can now expect a long lymphoma-free life. However, the price for this phenomenal success h...