Affiliation: | Umema Zafar, Madiha Khattak, Department of Physiology, Khyber Medical College, Peshawar 25000, PakistanHamna Zafar, Department of Medicine, Khyber Teaching Hospital, Peshawar 25000, PakistanMian Saad Ahmed, Department of Forensic Medicine, Khyber Medical College, Peshawar 25000, Pakistan |