Usman Shahid Butt, Aftab Alam Tanoli, Aisha Rasheed, Sadaf Nadir, Abdul Samad, Salman Pervaiz Rana. “Incidence, Clinical Presentation and Outcomes of Paraphenylenediamine (Kala Pathar) Poisoning in Patients Presenting at a Tertiary Care Hospital: A Prospective Study”. Pakistan Journal of Medical & Health Sciences 16, no. 12 (February 18, 2023): 842. Accessed November 21, 2024. https://mail.pjmhsonline.com/index.php/pjmhs/article/view/3910.