TY - JOUR T1 - Cluster randomization. JF - British Journal of General Practice JO - Br J Gen Pract SP - 1436 LP - 1437 VL - 48 IS - 432 AU - M Underwood Y1 - 1998/07/01 UR - http://bjgp.org/content/48/432/1436.3.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -