Zafar, N., Aslam, M., Ali, A., Khatoon, A., Nazir, A., Tanveer, Q., Bilal, M., Kanwar, R., Qadeer, A., Sikandar, M. and Zafar, A. (2020) “Probiotics: Helpful for the prevention of COVID-19?”, Biomedical Research and Therapy, 7(11), pp. 4086-4099. doi: 10.15419/bmrat.v7i11.646.