автор: Bridgette Bewick

DAVID BOWERS, Medical Statistician, University of Leeds Medical School, UK. ALLAN HOUSE, Professor, Director of Leeds Institute of Health Science, University of Leeds, UK. DAVID OWENS, Senior Lecturer in Psychiatry, Leeds Institute of Health Science, University of Leeds, UK. BRIDGETTE BEWICK, Senior Lecturer in Health Research, Leeds Institute of Health Sciences, University of Leeds, UK.