Late-Onset Fluorouracil Extravasation in a Patient with Nasopharyngeal Carcinoma: A Case Report from Persahabatan Hospital. persahabatanrespij [Internet]. 2025 Dec. 2 [cited 2026 Sep. 6];1(1). Available from: https://persahabatanrespijournal.or.id/index.php/home/article/view/8