[1] University of Gondar,Department of Epidemiology and Biostatistics, Institute of public health, College of Medicine and Health Science
[2] Department of Human Anatomy,Department of pediatric health nursing, college health science
[3] School of Medicine,Department of Emergency and critical care nursing, college of health science
[4] College of Medicine and Health Science,Department of medical nursing, school of Nursing, College of Medicine and health science
[5] University of Gondar,undefined
[6] Debre Tabor University,undefined
[7] Debre Tabor University,undefined
[8] University of Gondar,undefined