ojo, oluwafemi. “Barriers to Pneumococcal Conjugate 13 Vaccination Recommendations Among Physicians in Lagos: Challenges of Physicians in Recommending Pneumococcal Vaccine”. Babcock University Medical Journal 5, no. 1 (June 30, 2022): 37–44. Accessed June 9, 2023. https://bumj.babcock.edu.ng/index.php/bumj/article/view/124.