TY - JOUR T1 - Horizons in medicine JF - Clinical Medicine JO - Clin Med SP - 658 LP - 658 DO - 10.7861/clinmedicine.5-6-658 VL - 5 IS - 6 AU - Humphrey Hodgson Y1 - 2005/11/01 UR - http://www.rcpjournals.org/content/5/6/658.1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -