Werasirirat, Phurichaya, Rungthip Puntumethakul, Uraiwon Chatchawan, and Preeda Arayawichanon. 2012. “Comparison of immediate effects between multiple thoracic manipulation and single thoracic manipulation in chronic mechanical neck pain: a pilot study of randomized controlled trial”. Archives of Allied Health Sciences 24 (2). Khon Kaen, Thailand:208-19. https://he01.tci-thaijo.org/index.php/ams/article/view/66282.