Loi, Mauro https://orcid.org/0000-0002-0360-3275
Frelinghuysen, Michael
Klass, Natalie Desiree
Oomen-De Hoop, Esther
Granton, Patrick Vincent
Aerts, Joachim
Verhoef, Cornelis
Nuyttens, Joost
Article History
Received: 29 September 2017
Accepted: 4 July 2018
First Online: 11 July 2018
Compliance with ethical standards
:
: All the authors report no conflict of interest.
: All procedures in our study were approved by the Institutional Review Board, and performed in accordance with the ethical standards of the National Research Committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Due to its retrospective design, for this type of study formal consent is not required.