Samina Alam, Madiha Maboos, Komal Iqbal, Farzeen Saleem, Mahnoor Ashfaq and Mahnoor Mukhtar 2021. Side effects of Covid-19 vaccines among population of Karachi-A survey based study: https://doi.org/10.54037/WJPS.2021.91201. World Journal of Pharmaceutical Sciences. 9, 12 (Dec. 2021), 120–124.