Umair, R., Shadma, Y., Areena, S., ., H., MK, V., P, V., J, A. and VK, S. 2021. Personal Protective Equipments Preventing transmission of COVID-19, Crisis Capacity Strategies and Continued Preparedness: A Systematic Review. International Journal of Health and Clinical Research. 4, 3 (Feb. 2021), 252–262.