1. Prevalence and risk factors of mortality among hospitalized patients with COVID-19 : A systematic review and meta-analysis;Abate;Bulletin of the World Health Organization,2020
2. Knowledge, perceptions, and attitude of Egyptians towards the novel coronavirus disease (COVID-19);Abdelhafiz;Journal of Community Health,2020
3. Alcohol intake in an attempt to fight COVID-19: A medical myth in Iran;Aghababaeian;Alcohol,2020
4. Knowledge, attitudes and practices towards COVID-19: A cross-sectional study in the resident cape-verdean population;Alves;Soc. Sci. Humanit. open,2021
5. Les Techniques de Sondage;Ardilly,2006