Jantzer, Vanessa
Schlander, Michael
Haffner, Johann
Parzer, Peter
Trick, Sarah
Resch, Franz
Kaess, Michael
Funding for this research was provided by:
Marga und Walter Boll Stiftung
Article History
Received: 19 January 2018
Accepted: 6 September 2018
First Online: 17 September 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study has been approved by ethics committee of the Medical Faculty of the University of Heidelberg and has therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
: At the beginning of the online questionnaire, parents were informed about protection of data privacy and the anonymity of their answers.