S. Batra, A. Malhotra, L. Oberoi, K. D. Singh, and B. Mohindroo, “Correlation of SARS-Cov2 viral load with severity of COVID-19 disease in pregnant women at term: an observational study”, Int J Res Med Sci, vol. 11, no. 9, pp. 3305–3309, Aug. 2023.