The Pakistan Brain Tumour Epidemiology Study oleh Syed Ather Enam , Mashal Murad Shah, Mohammad Hamza Bajwa , Muhammad Usman Khalid, Saqib Kamran Bakhshi, Erum Baig, Iqbal Azam Altaf, Altaf Ali Laghari , Saad bin Anis, Naveed Zaman Akhunzada, Muhammad Faraz Raghib, Jaleed Ahmed Gilani, Noyan Jawed, Sameen Siddiqi