Text and Data Mining valid from 2018-03-26
Received: 15 October 2017
Accepted: 19 March 2018
First Online: 26 March 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The study was approved by the institutional ethical committee of the HM Hospitals group.
: All patients included were informed about the treatment and written informed consent was obtained before all surgeries.