Saneemanomai, S., and S. 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, vol. 65, no. 1, Feb. 2021, pp. 45-60, doi:10.14456/vmj.2021.5.