Text and Data Mining valid from 2019-06-18
Received: 13 April 2019
Accepted: 11 June 2019
First Online: 18 June 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The study was approved by the ethics committee of General Hospital Našice (No. 01-497/3-2017) and by ethics committee Faculty of Medicine Osijek, University Josip Juraj Strossmayer Osijek, Croatia (No. 2158-61-07-17-209). All data were anonymized and the study was conducted in accordance with the amended Declaration of Helsinki. Informed consent was obtained from all individual participants included in the study. All participants signed an informed consent form before entering the study.
: The datasets generated and analysed during the current study are available from the corresponding author on reasonable request.