Ray, S., Singh, A. and Singh, R. 2023. Assessment of relative efficiency of COVID-19 vaccines granted emergency use authorization in India and their respective modes of delivery-an economic evaluation. International Journal Of Community Medicine And Public Health. 10, 10 (Sep. 2023), 3822–3831. DOI:https://doi.org/10.18203/2394-6040.ijcmph20233122.