1. Norwegian Knowledge Centre for the Health Services; (Deceased); Oslo Norway
2. Norwegian Knowledge Centre for the Health Services; Box 7004 St Olavs plass Oslo Norway N-0130
3. Norwegian Knowledge Centre for the Health Services; Global Health Unit; P.O. Box 7004, St. Olavs plass Oslo Norway N-0130
4. Institute of Education, University of London; Social Science Research Unit; 18 Woburn Square London UK WC1H 0NR