PREVALENCE OF TEXT NECK SYNDROME AND ITS ASSOCIATION WITH SMARTPHONE USAGE AMONG SHOPKEEPERS IN KARACHI. Review Journal of Neurological & Medical Sciences Review, [S. l.], v. 3, n. 4, p. 170–185, 2025. DOI: 10.63075/tf8apc43. Disponível em: http://rjnmsreview.com/index.php/rjnmsr/article/view/244. Acesso em: 15 aug. 2025.