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'Public Health Surveillance (whole lecture) | ما هو التقصي الوبائي؟ المحاضرة الكاملة'
'Public Health Surveillance (whole lecture) | ما هو التقصي الوبائي؟ المحاضرة الكاملة' 32:03 Jul 22, 2021
'Coronavirus: How is China using surveillance to fight coronavirus? - BBC News'
'Coronavirus: How is China using surveillance to fight coronavirus? - BBC News' 04:25 Feb 13, 2021