Akhtar, Naveed, et al. “Third Wave of COVID -19 in Pakistan: New Variants With New Travelers? Third Wave of COVID -19 in Pakistan: New Variants With New Travelers?”. Pakistan BioMedical Journal, vol. 4, no. 2, Aug. 2021, pp. 4-6, https://doi.org/10.52229/pbmj.v4i2.64.