Oral Hairy Leukoplakia: A Rare Involvement in a Patient with Polycythemia Vera - Medeiros, Yuri; Oliveira, Dandara; Prata Júnior, Agnaldo; Souza, Laura; Pinto, Clóvis; Jaguar, Graziella; Alves, Fabio (International Journal of Hematology-Oncology and Stem Cell Research, 2025)