Seth, D., P. Kumar, A. Kumar, A. K. Sharma, and P. Singh. “Knowledge, Attitude, Practices towards Covid-19 Profile of Patients Attending Outpatient Department of Ophthalmology in a Tertiary Care Hospital in South Bihar - a Cross – Sectional Survey”. International Journal of Health and Clinical Research, vol. 3, no. 9, Nov. 2020, pp. 244-9, https://ijhcr.com/index.php/ijhcr/article/view/438.