Muangpaisan, W., Seidel, D., Hori, H. and Mathews, A. (2009) “Parkinson’s Disease: Time, Place, Person and Survival”, Siriraj Medical Journal, 61(1), pp. 60–63. available at: https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246534 (accessed: 19 September 2026).