Tariq, Ayesha, et al. “Frequency of Cardiovascular Complications in Coronavirus-19 Infected Patients During the Second Wave in a Tertiary Care Hospital of Lahore, Pakistan: Cardiovascular Complications in COVID-19 Patients”. Pakistan BioMedical Journal, vol. 4, no. 1, June 2021, https://doi.org/10.52229/pbmj.v4i1.51.