Yoneda, Kozo, et al. “Detection of Apoptotic Keratinocytes in a Case of Bullous Pemphigoid Developed After Graft-Versus-Host Disease”. Acta Dermato-Venereologica, vol. 94, no. 2, Aug. 2013, pp. 231-2, doi:10.2340/00015555-1676.