Roger T Staff clinical scientist, Michael J Hogan senior lecturer, Daniel S Williams undergraduate, L J Whalley professor emeritus
Staff R T, Hogan M J, Williams D S, Whalley L J.
Intellectual engagement and cognitive ability in later life (the “use it or lose it” conjecture): longitudinal, prospective study
BMJ 2018; 363 :k4925
doi:10.1136/bmj.k4925