Subasinghe, Kalpana, Nadisha Piyarathne, Pilana Vithanage Hettiarachchi, and Ruwan Jayasinghe. “The Impact of the COVID-19 Pandemic on the Management of Patients With Oral Potentially Malignant Disorders in a Tertiary Care Hospital, Sri Lanka”. Asian Pacific Journal of Cancer Care 8, no. 1 (February 17, 2023): 29-34. Accessed May 7, 2024. http://www.waocp.com/journal/index.php/apjcc/article/view/962.