Nawaz M, Maryam M, Noor M, . M, . M, Muhammad Abdullah Khan MA, Tariq MA, Ahmad M, Ahmed M. The Effect of Smartphones on the Self-Rated Health Levels of the Elderly: A Cross-Sectional Study in Punjab Province. JSPARK [Internet]. 2022 Sep. 20 [cited 2024 May 19];1(2). Available from: https://journalofspark.com/journal/index.php/JSpark/article/view/28