Atherton, N., Bridle, C., Brown, D., Collins, H., Dosanjh, S., Griffiths, F., Hennings, S., Khan, K., Lall, R., Lyle, S., McShane, R., Mistry, D., Nichols, V., Petrou, S., Sheehan, B., Slowther, A., Thorogood, M., Withers, E., Zeh, P., & Lamb, S. (2016). dementia and Physical Activity (DAPA) - an exercise intervention to improve cognition in people with mild to moderate dementia: study protocol for a randomized controlled trial. Trials, 17(1), 1–12. http://access.bl.uk/ark:/81055/vdc_100080444479.0x000018