K. Wozniak, C. Kowalewski, T. Hashimoto, N. Ishii, M. Glinska-Wielochowska, and R. Schwartz, “Penicillin-induced anti-p200 pemphigoid: an unusual morphology”, Acta Derm Venereol, vol. 86, no. 5, pp. 443–446, Sep. 2006.