Jamil, Sajid, Muhammad Tayyab, and Muhammad Farooq. “Relationship of Secretor Status in Patients With Oral Cancers”. Annals of King Edward Medical University 11, no. 4 (May 2, 2016). Accessed April 25, 2024. https://www.annalskemu.org/journal/index.php/annals/article/view/1113.