10-year outlook in an incident population-based cohort_Williams-Gray et al 2013.pdf
5 year follow-up of the CamPaIGN cohort_Williams-Gray et al 2009.pdf
Evolution of cognitive dysfunction in an incident PD cohort_Williams-Gray et al 2007.pdf
The natural history of treated PD in an incident community based cohort_Evans et al 2011.pdf