RT Journal Article SR Electronic T1 Further observations on enablement JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 499 OP 500 DO 10.3399/bjgp08X319477 VO 58 IS 552 A1 John GR Howie A1 David J Heaney A1 Margaret Maxwell A1 George K Freeman A1 Stewart W Mercer YR 2008 UL http://bjgp.org/content/58/552/499.abstract AB