- Correspondence to Dr Janneke Heijne, National Institute of Public Health and the Environment, P. O. Box 1, Bilthoven 3720 BA, The Netherlands;
- Received July 1, 2016
- Revised November 3, 2016
- Accepted November 28, 2016
- First published December 16, 2016.
Abstract in Dutch
This web only file has been produced by the BMJ Publishing Group from an electronic file supplied by the author(s) and has not been edited for content.
- Abstract in Dutch - Online abstract
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.