Valerie Seagroatt1, Michael J Goldacre. 1. Unit of Health-Care Epidemiology, Department of Public Health, University of Oxford, Oxford OX3 7LF. valerie.seagroatt@dphpc.ox.ac.uk
Authors: Richard Heijink; Xander Koolman; Daniel Pieter; André van der Veen; Brian Jarman; Gert Westert Journal: BMC Health Serv Res Date: 2008-04-03 Impact factor: 2.655