Muhammad Usman Khalid, Mohammad Hamza Bajwa, Mashal Murad Shah, Syed Nabeel Zafar, Altaf Ali Laghari, Naveed Zaman Akhunzada, Saad bin Anis, Muhammad Faraz Raghib , Sameen Siddiqi, and Syed Ather Enam . “Factors Associated With Lost to Follow up in Patients With Brain Tumours: A Multi-Centre Study in Pakistan”. Journal of the Pakistan Medical Association, vol. 72, no. 11, Dec. 2022, pp. S16 - S24, doi:10.47391/JPMA.11-S4-AKUB03.