Hussain, Mehmood, Fida Hussain, Asad Malik, Malik Nadeem Azam Khan, Zaigham Saleem, and Maryam Rehman. “Efficacy of I-131 MIBG Myocardial Scintigraphy for the Differentiation Between Parkinson’s Disease and Multiple System Atrophy”. Pakistan Armed Forces Medical Journal 74, no. 6 (December 31, 2024): 1513–1517. Accessed January 27, 2025. https://pafmj.org/PAFMJ/article/view/8384.