TY - JOUR T1 - A clinical indication on every repeat performance. JF - British Journal of General Practice JO - Br J Gen Pract SP - 58 LP - 59 VL - 54 IS - 498 AU - Nigel Masters Y1 - 2004/01/01 UR - http://bjgp.org/content/54/498/58.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -