Muangpaisan, Weerasak, David Seidel, Hiroyuki Hori, and Aju Mathews. “Parkinson’s Disease: Time, Place, Person and Survival”. Siriraj Medical Journal 61, no. 1 (January 1, 2009): 60–63. Accessed May 8, 2024. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246534.