Hallegraeff Joannes M, de Greef Mathieu H, van der Schans Cees P
Hanze University of Applied Sciences.
Hanze University of Applied Sciences; University Medical Center Groningen, The Netherlands.
J Physiother. 2014 Sep;60(3):174-5. doi: 10.1016/j.jphys.2014.06.017. Epub 2014 Jul 30.