Patients’ online access to their electronic health records and linked online services: a systematic interpretative review - De Lusignan, S; Mold, F; Sheikh, A; Majeed, A; Wyatt, JC; Quinn, T; Cavill, M; Gronlund, TA; Franco, C; Chauhan, U; Blakey, H; Kataria, N; Barker, F; Ellis, B; Koczan, P; Arvanitis, TN; McCarthy, M; Jones, S; Rafi, I (BMJ Open, 2014)