Muangpaisan, W. ., Seidel, D. ., Hori, H. ., & Mathews, A. . (2009). Parkinson’s Disease: Time, Place, Person and Survival. Siriraj Medical Journal, 61(1), 60–63. Retrieved from https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246534