Majid, Umair, and Mobeen Ahmad. “Vaccines in the 21st Century: Clarifying the Factors That Promote Vaccine Hesitancy, Delay, and Rejection”. Health Science Inquiry 11, no. 1 (August 10, 2020): 123–127. Accessed April 3, 2025. https://healthscienceinquiry.com/index.php/hsi/article/view/285.