Galal , Y. S., W. A. Abuelhamd, T. A. A. . Hamid, and N. R. Elsayed. “Coronavirus Disease 2019: Knowledge, Attitude, Practice, and Perceived Barriers Among Health Care Workers at Cairo University Children Hospital, Egypt”. Open Access Macedonian Journal of Medical Sciences, vol. 9, no. E, Feb. 2021, pp. 80-88, doi:10.3889/oamjms.2021.5703.