Maintenance: On Thursday, June 28 2018, 18:00-18:15, maintenance work on the ZORA servers is scheduled. ZORA will not be available during this period. Thank you for your patience.
Koch, H; van Bokhoven, M A; ter Riet, G; Hessels, K M; van der Weijden, T; Dinant, G J; Bindels, P J E (2009). What makes general practitioners order blood tests for patients with unexplained complaints? A cross-sectional study. European Journal of General Practice, 15(1):22-28.