Friedman Deborah I, Evans Randolph W
Department of Neurology & Neurotherapeutics and Ophthalmology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Department of Neurology, Baylor College of Medicine, Houston, TX, USA.
Headache. 2017 Apr;57(4):643-647. doi: 10.1111/head.13042. Epub 2017 Feb 9.