Andualem, Zewudu, Asefa Adimasu Taddese, Zelalem Nigussie Azene, Jember Azanaw, and Henok Dagne. “Respiratory Symptoms and Associated Risk Factors Among under-Five Children in Northwest Ethiopia: Community Based Cross-Sectional Study”. Multidisciplinary Respiratory Medicine 15 (October 2, 2020). Accessed June 30, 2025. https://mail.mrmjournal.org/index.php/mrm/article/view/685.