Shahina Mumtaz1, Jawad Ahmed2*, Liaqat Ali1 and Hamid Hussain3
1Department of Pathology, Khyber Medical College, Peshawar, Khyber Pakhtunkhwa, Pakistan. 2Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, Pakistan.
3Department of Community Medicine and Public Health, Khyber Medical College, Peshawar, Khyber Pakhtunkhwa, Pakistan
