1. Arshad Sabir Syed:
Department of Community Medicine, Rawalpindi Medical College, Rawalpindi, Pakistan
2. Humaira Aziz:
Department of Community Medicine, Rawalpindi Medical College, Rawalpindi, Pakistan
3. Asma:
Department of Community Medicine, Rawalpindi Medical College, Rawalpindi, Pakistan
4. Sajid Hameed:
Punjab Medical College, Faisalabad, Pakistan