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History
- Received July 5, 2010
- Revision received July 27, 2010
- Accepted August 23, 2010
- Published online June 1, 2011.
Copyright & Usage
© British Journal of General Practice, January 2011
Author Information
- Huug J van Duijn, MD, PhD, GP and
- Janneke N Belo, MD, PhD, GP, clinical epidemiologist
- Jeanet W Blom, MD, PhD, senior researcher and
- Irvine D Velberg, MD, GP
- Willem JJ Assendelft, MD, PhD, professor of general practice
- Health Cooperative Katwijk langs de Rijn, Katwijk, and Department of General Practice, Erasmus Medical Centre, Rotterdam, The Netherlands
- Health Cooperative Katwijk langs de Rijn, Katwijk
- Department of Public Health and Primary Care, Leiden University Medical Centre, Leiden, The Netherlands
- Address for correspondence
Huug J van Duijn, Molenweg 16, 2223 HD Katwijk ZH, The Netherlands. E-mail: hj{at}vduijn.nl