Analysis of nonspecific oral mucosal and dermal lesions suggestive of syphilis: a report of 6 cases - Kelner, Natalie; Rabelo, Gustavo Davi; Perez, Danyel Elias da Cruz; Assunção Junior, José Narciso Rosa; Witzel, Andrea Lusvarghi; Migliari, Dante Antônio; Alves, Fábio Abreu (Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology, 2014)