Dr. M. Shyam Sundar, and Dr. Hemalatha Rendocharakula. “Parkinsonism and Its Clinical Subtypes - An Observational Study in ATertiary Care Hospital”. IAR Journal of Medicine and Surgery Research 4, no. 5 (October 30, 2023): 8–11. Accessed June 8, 2025. https://www.jmsrp.org/index.php/jmsrp/article/view/110.