Muhammad Mansoor Ali, Muhammad Zubair, Muhammad Umer Abdullah, Muhammad Ahmad Javed, Muneeza Wazir, Fizza Javed, Muntha Chaudhari, Zahra Niaz, “Immunization Coverage of Covid-19 among Attendants Accompanying Patients in Gulab Devi Hospital-Pakistan”, Pakistan Journal of Medical & Health Sciences, vol. 17, no. 08, p. 36, Jan. 2024.