title: The Reply.
authors.affiliation: Wolfson Institute of Preventive Medicine, Queen Mary University of London, UK.
authors.forename: David S
authors.initials: DS
authors.lastname: Wald
authors.affiliation: Wolfson Institute of Preventive Medicine, Queen Mary University of London, UK.
authors.forename: Shahena
authors.initials: S
authors.lastname: Butt
authors.affiliation: Wolfson Institute of Preventive Medicine, Queen Mary University of London, UK.
authors.forename: Jonathan P
authors.initials: JP
authors.lastname: Bestwick
mesh_terms: D006801:Humans; D055118:Medication Adherence; D017010:Reminder Systems; D060145:Text Messaging