Is it traction or pressure? Case series of hair system-induced alopecia in six patients - Gil-Redondo, R.; Hermosa-Gelbard, A.; Saceda-Corralo, D.; Pindado-Ortega, C.; Porriño-Bustamante, M.L.; Jiménez-Cauhé, J.; Vañó-Galván, S. (Journal of the European Academy of Dermatology and Venereology, 2024)