Udeh-momoh, C T, Watermeyer, T, Price, G, De Jager Loots, C A, Reglinska-matveyev, N, Ropacki, M, Ketter, N, Fogle, M, Raghavan, N, Arrighi, M, Brashear, R, Di, J, Baker, S, Giannakopoulou, P, Robb, C, Bassil, D, Cohn, M, Mclellan-young, H, Crispin, J, Lakey, K, Lisa, C, Chowdary Seemulamoodi, Y, Kafetsouli, D, Perera, D, Car, J, Majeed, A, Ward, H, Ritchie, K, Perneczky, R, Kivipelto, M, Scott, D, Bracoud, L, Saad, Z, Novak, G, Ritchie, C W & Middleton, L 2021, ' Protocol of the Cognitive Health in Ageing Register: Investigational, Observational and Trial Studies in Dementia Research (CHARIOT): Prospective Readiness cOhort (PRO) SubStudy ', BMJ Open, vol. 11, no. 6, pp. e043114 . https://doi.org/10.1136/bmjopen-2020-043114 BMJ Open, Vol 11, Iss 6 (2021) BMJ Open