Iqbal, R., Sethi, M. J. and Sethi, S. (2011) “FREQUENCY OF VITAMIN A DEFICIENCY IN CHILDREN OF AGE 6 MONTHS TO 72 MONTHS AT THE OUT PATIENT OPHTHALMOLOGY DEPARTMENT OF AGENCY HEADQUARTER HOSPITAL LANDIKOTAL, KHYBER AGENCY”, Journal of Postgraduate Medical Institute, 21(1). Available at: https://www.jpmi.org.pk/index.php/jpmi/article/view/147 (Accessed: 20 April 2024).