RT Journal Article SR Electronic T1 EDO—again JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 741 OP 741 DO 10.3399/bjgp08X34256 VO 58 IS 555 A1 Michael Lasserson YR 2008 UL http://bjgp.org/content/58/555/741.1.abstract AB