A MIXED-METHODS INVESTIGATION INTO BARRIERS TO ROUTINE IMMUNIZATION IN THE PERI-URBAN SLUMS OF BAHAWALPUR, PAKISTAN: A STUDY FROM LINCOLN UNIVERSITY COLLEGE MALAYSIA. RMSR [Internet]. 2025 Jul. 16 [cited 2025 Jul. 17];3(7):692-9. Available from: http://www.thermsr.com/index.php/Journal/article/view/1528