Thaitanundr, Anukul. “Chronic Dacryocystitis and Success Rate of External Dacryocystorhinostomy in Makarak Hospital”. Journal of Health Science of Thailand 17, no. 4 (December 25, 2017): 618–624. Accessed December 5, 2025. https://thaidj.org/index.php/JHS/article/view/1182.