- Correspondence to Henrik Hasle, Department of Pediatrics, Aarhus University Hospital Skejby, Palle Juul-Jensens Boulevard 99, Aarhus N 8200, Denmark;
- Received October 22, 2014
- Revised April 13, 2015
- Accepted July 6, 2015
- First published July 27, 2015.
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