Yokoyama, R., Hayashi, R., Umemori, Y., Arimatsu, A., Yuki, A. and Abe, R. 2020. Refractory Bullous Pemphigoid Improved by Discontinuation of Phenytoin as an CYP3A4 Inducer. Acta Dermato-Venereologica. 100, 8 (Apr. 2020), 1–2. DOI:https://doi.org/10.2340/00015555-3472.