Van Dem, P., 		Trung Kien, P., 		Thanh Trung, N., 		Thu Huong, N., 		Thanh Nam, N., 		Quang Tue, P., & 		Minh Dien, T.
(2022).
 Clinical, Paraclinical Characteristics  and Relative Risk Factors of Severe Degree in Children  with COVID-19: Systematic Review.
<em>VNU Journal Of Science: Medical And Pharmaceutical Sciences, 38</em>(1).
doi:10.25073/2588-1132/vnumps.4371