Etura J, Abam J, Akpan U, Jeremiah Z. ABH SECRETOR STATUS AMONG THE UNIVERSITY OF CALABAR UNDERGRADUATES, NIGERIA. sanamed [Internet]. 2024 Oct. 21 [cited 2026 Jul. 12];19(3). Available from: https://asistent.ceon.rs/index.php/sanamed/article/view/51776