Saneemanomai, Sirinapa, and Suwat Srisuwannanukorn. “Thai Scales for Outcomes in Parkinson’s Disease-Nighttime Sleep and Modified Parkinson’s Disease Sleep Scale for Assessment of Nighttime Sleep Disorder Compared with Pittsburgh Sleep Quality Index at the Faculty of Medicine Vajira Hospital”. Vajira Medical Journal : Journal of Urban Medicine 65, no. 1 (February 24, 2021): 45–60. accessed September 19, 2026. https://he02.tci-thaijo.org/index.php/VMED/article/view/241973.