James Thrall, MD, is the radiologist-in-chief at Massachusetts General Hospital and a radiology professor at Harvard Medical School as well as co-author of Nuclear Medicine, 4th Edition.

Gary A. Ulaner, MD, PhD is Associate Attending Radiologist, Memorial Sloan Kettering Cancer Center in New York. He is the author of .  MORE

Dr. Valji earned an MD from Harvard Medical School and is currently a radiology professor at the University of California San Diego as well as an author of The Practice of Interventional Radiology.

Christopher Walker, MD is a Cardiothoracic Radiologist at Saint Luke’s Hospital of Kansas City and Assistant Professor, Department of Radiology at the University of Missouri-Kansas City School of Medicine. He is a co-author of Muller’s Imaging of the Chest, 2nd Edition. MORE

Richard Webb, MD is Professor Emeritus of Radiology in the Cardiac and Pulmonary Section, Department of Radiology and Biomedical Imaging at the University of California, San Francisco. Dr. Webb has published more than 200 papers in scientific journals, authored or coauthored 8 books, and written over 100 book chapters in other publications. MORE