Introduction by the Guest Editor Staying Ahead of the Rapidly Evolving World of Chronic Lymphocytic LeukemiaCheson, Bruce D. MDThe Cancer Journal: November/December 2019 - Volume 25 - Issue 6 - p 373 doi: 10.1097/PPO.0000000000000415 Review Articles Buy Author InformationAuthors Article MetricsMetrics From the Georgetown University Hospital, Lombardi Comprehensive Cancer Center, 3800 Reservoir Rd, N.W. Washington, DC 20007. Reprints: Bruce Cheson, MD, Georgetown University Hospital, Washington, DC. E-mail: firstname.lastname@example.org. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.