@article{articlea3830a3b,
title   = {EBV-Associated Polymorphic Posttransplant Lymphoproliferative Disorder Presenting as Gingival Ulcers},
author = {León, Jorge Esquiche and Takahama Júnior, Ademar and Vassallo, José and Soares, Fernando Augusto and Almeida, Oslei Paes de and Lopes, Márcio Ajudarte},
year = {2011},
doi = {10.1177/1066896909353599},
journal   = {International Journal of Surgical Pathology}
}