Kanagala, Dr. Amrutha, and Dr. Ankur. “Effect of Smartphone Screen Time on Sleep Quality and Daytime Alertness: A Cross-Sectional Observational Study.”. Student’s Journal of Health Research Africa 7, no. 3 (March 1, 2026): 11. Accessed May 1, 2026. http://sjhresearchafrica.org/index.php/public-html/article/view/2379.