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APA Citation
Khalil, H., van Deursen, R., Quinn, L., Rosser, A., & Busse, M. (n.d.). f18 Clinical measurement of sit to stand performance in people with huntington's disease: reliability and validity for 30 seconds chair sit to stand test. Journal of neurology, neurosurgery and psychiatry, 81, A28. http://access.bl.uk/ark:/81055/vdc_100135552448.0x000035