Persistent Buccal Ulcer with Underlying Non-Neoplastic Ectopic Lymphoid Aggregates: A Tonsillar Tissue? - Badawy, Wafaey; Almaaytah, Asim S.; El-Din, Amani Nour; Khalele, Bacem (Indian Journal of Otolaryngology & Head & Neck Surgery (Springer Nature), 2024)