Wasenius, Niko, Teppo Karapalo, Tuulikki Sjögren, Mika Pekkonen, and Esko Mälkiä. 2013. “Physical Dose of Therapeutic Exercises in Institutional Neck Rehabilitation”. Journal of Rehabilitation Medicine 45 (3):300-307. https://doi.org/10.2340/16501977-1118.