Cluster randomised controlled trial of screening for atrial fibrillation in people aged 70 years and over to reduce stroke: protocol for the pilot study for the SAFER trial (BMJ Open, 2022)

(untitled) - Williams, K; Modi, RN; Dymond, A; Hoare, S; Powell, A; Burt, J; Edwards, D; Lund, J; Johnson, R; Lobban, T; Lown, M; Sweeting, MJ; et al.