Chronic oral ulceration as an indicator of anemia induced by low-dose methotrexate: a case report - Abreu, Matheus de; Melo, Gabriela Banacu de; Ferreira, Maria Emilia Mota Galdino; Oliveira, Samanta Vicente; Heguedusch, Daniele; Trierveiler, Marilia; Gallo, Camila de Barros (Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology, 2025)