Dental students and COVID 19: An online multinational survey on perception and knowledge. - Koppolu, Pradeep; Tanvir, Syed; Lingam, Amara; Noor, Muhammad; Barakat, Ali; Alwahibi, Mohammed; Almoallim, Hesham; Aqerban, Ali; Noushad, Mohammed; Niazi, Fayez (Annals of African Medicine, 2022)