almukatteb, kawala et al. 2026. Risk Factors of Acute Respiratory Infection Among Under-Five Children Attending Public Hospitals in Sana’a City. Institutional Repository for Scientific Scholarship at 21 September University for Medical and Applied Sciences. 7, 2 (Jun. 2026), 1–73. DOI:https://doi.org/10.65693/irss.2026.v7i2.363.