Pembrolizumab in relapsed or refractory Richter syndrome

The authors thank the patients and their families, as well as investigators and site personnel. Medical writing and/or editorial assistance was provided by Cathy R. Winter, PhD, and Matthew Grzywacz, PhD, of the ApotheCom pembrolizumab team (Yardley, PA, USA). This assistance was funded by Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA. Funding for this research was provided by Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA.