Selwyn St Leger is Consultant/Senior Lecturer in Public Health Medicine at Manchester Health Authority and the University of Manchester. He is RandD Lead for the health authority and also works closely with the RandD Directorate of the NHSE (North West). Previously he was employed as a member of scientific staff by the Medical Research Council. Jo Walsworth-Bell was, until retiring in December 1998, Consultant in Public Health Medicine at South Stafford Health Authority. Previously she worked at the North West Regional Health Authority and held honorary appointments with the Universities of Manchester and Birmingham.St. Leger, Anthony Selwyn is the author of 'Change-Promoting Research for Health Services A Guide for Research Managers, R & D Commissioners, and Researchers' with ISBN 9780335202201 and ISBN 0335202209.