- Correspondence to: Dr Chin A Paw, Institute for Research in Extramural Medicine and Department of Social Medicine, Vrije Universiteit Medical Centre, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands;
- Accepted December 6, 2001
- First published April 1, 2002.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.