Aggarwal, J., S. Tomo, J. Batra, and P. Katara. “Comparative Retrospective Study of Biochemical and Haematological Biomarkers and Their Alterations in First and Second COVID-19 Wave in a Tertiary Care Facility in Ghaziabad”. International Journal of Health Sciences, vol. 6, no. S3, May 2022, pp. 7228-45, doi:10.53730/ijhs.v6nS3.7737.