Text and Data Mining valid from 2019-08-29
Received: 9 January 2019
Accepted: 5 August 2019
First Online: 29 August 2019
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was approved by the local ethics committee at the “Chaim Sheba” Medical Center, Israel, reference no. 4478-17. For this type of retrospective study formal consent is not required.
: Not applicable.
: The authors declare that they have no competing interests.