AHMAD, Samreen; ZAHID, Shahzada Bakhtyar; JAN, Anwar Zeb. The impact of parental education and socioeconomic status on routine childhood vaccination: An obsevational study. Journal of Postgraduate Medical Institute, [S. l.], v. 27, n. 3, 2013. Disponível em: http://www.jpmi.org.pk/index.php/jpmi/article/view/1391. Acesso em: 5 dec. 2025.