García-Arpa, M., Flores-Terry, M. A., González-Ruiz, L., Franco-Muñoz, M. and Calvo-García, M. (2019) “Primary Essential Cutis Verticis Gyrata: A scalp condition that may appear in various disorders”, Sultan Qaboos University Medical Journal, 18(4), pp. e560–562. doi: 10.18295/squmj.2018.18.04.025.