Text and Data Mining valid from 2019-04-15
Received: 27 August 2018
Accepted: 4 April 2019
First Online: 15 April 2019
Compliance with ethical standards
: We have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study received ethics committee approval at Waikato Hospital, New Zealand.
: Informed written consent was obtained from all patients included in the study.