- Correspondence to Professor Paul L P Brand, Princess Amalia Childrens Centre, Isala Hospital, PO Box 10400, 8000 GK Zwolle, The Netherlands;
- Received October 5, 2013
- Revised March 14, 2014
- Accepted April 11, 2014
- First published May 8, 2014.
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.