Dr. Michael J. Aminoff, Distinguished Professor Emeritus in neurology at the University of California San Francisco, is an internationally recognized neurologist, clinical investigator, and author. His published contributions led to the award of a Doctor of Science degree by the University of London in 2000. He is one of the two editors-in-chief of the four-volume Encyclopedia of the Neurological Sciences (2003; 2014) as well as one of the series editors of the multivolume Handbook of Clinical Neurology. He was editor-in-chief of the journal Muscle & Nerve from 1998 to 2007 and has served on numerous other editorial boards. He was a director of the American Board of Psychiatry and Neurology for eight years and served as board chair in 2011. In 2006, he received the Lifetime Achievement Award from the American Association of Neuromuscular & Electrodiagnostic Medicine and, in 2007, the A.B. Baker Award for Lifetime Achievement in Neurological Education from the American Academy of Neurology. In 2019 he received the Robert S. Schwab Award for outstanding contributions to research in peripheral clinical neurophysiology from the American Clinical Neurophysiology Society. Dr. Jeffrey W. Ralph directs the neuromuscular medicine fellowship program at the University of California San Francisco (UCSF). He completed a neurology residency as well as fellowship training in neuromuscular medicine and clinical neurophysiology at UCSF. Dr. Ralph is an expert in the electrodiagnosis of neuromuscular diseases and in the clinical management of these diseases, especially peripheral neuropathies, and since 2004 has directed the Neuropathy Center at UCSF Medical Center. His research has addressed treatments for neuropathy caused by HIV/AIDS and muscle channelopathies.Dr. Francis O. Walker joined the faculty of Wake Forest University School of Medicine in 1984 and is currently Emeritus Professor of Neurology. He has published widely on clinical neuropharmacology, neurophysiology, and neuromuscular imaging and has helped in the training of numerous fellows and residents. He has served on several editorial boards, helped create self-assessment and certifying examinations in clinical neurophysiology, and held leadership positions in medical societies including a term as president of the American Association of Neuromuscular and Electrodiagnostic Medicine. Dr. Walker has been a pioneer in the development of ultrasound as a means of evaluating the neuromuscular system, and he is a co-editor of the book Neuromuscular Ultrasound.