Rahman, Md Mizanur, et al. “Diversity of Upper Respiratory Tract Pathogens in Patients Having Flu-Like Symptoms During Covid-19 Pandemic in a Referral Hospital”. Journal of Bangladesh College of Physicians and Surgeons, vol. 41, no. 4, Oct. 2023, pp. 256-61, doi:10.3329/jbcps.v41i4.68922.