Nens van Alfen MD PhD is an Associate Professor of Neurology and clinical neurophysiologist from the Radboud university medical center in Nijmegen, The Netherlands. Her areas of expertise are neuromuscular ultrasound, peripheral nerve pathology, brachial plexus neuropathies, and electrodiagnosis of neuromuscular disorders. The RUMC clinical neurophysiology laboratory performs a 1200+ nerve and muscle ultrasound studies yearly, and receives visiting clinicians from all over the world for short training programs in neuromuscular ultrasonography. Dr. van Alfen’s current focus is on advancing muscle ultrasound and developing a teaching and quality program for neuromuscular ultrasound nationally and internationally.