ScienceImmunotherapy on trialTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience04/28/2016April 28, 2016Dr. Ulrich Keilholz explains how immunotherapy works and the chances of successful treatment. He also explains why immunotherapy works for some patients and not others, and what the potential side effects are.https://p.dw.com/p/1IecgAdvertisement