Dr. Nehalben J. Patel, et al. “Epidemiological Characterization of Symptomatic and Asymptomatic COVID-19 Cases by Using RT-PCR Tests at a Tertiary Care Hospital, Bhavnagar”. Journal of Population Therapeutics and Clinical Pharmacology, vol. 32, no. 11, Sept. 2026, pp. 2607-16, https://doi.org/10.67145/rqqysm55.