Charlton-Webb, J., Willis, K., Jones, G., White, S., Norris, C., Bageya, M., Jarman, H. (2026). Feasibility and acceptability of smartphone technology for patients to self-record vital signs in the emergency department (The FacED Study): A study protocol. PLoS ONE. https://doi.org/10.1371/journal.pone.0326013