RT Journal Article SR Electronic T1 Response shift, responsiveness or recall bias? JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 585 OP 585 VO 52 IS 480 A1 Michael Robling A1 Kerenza Hood YR 2002 UL http://bjgp.org/content/52/480/585.2.abstract AB