Title Item Type No Grouping Herrett, E; Williamson, E; van Staa, T; Ranopa, M; Free, C; Chadborn, T; Goldacre, B and Smeeth, L (2015). Text messaging reminders for influenza vaccine in primary care: a cluster randomised controlled trial (TXT4FLUJAB). [Dataset]. 10.17037/DATA.97.