Text and Data Mining valid from 2020-03-02
Received: 10 June 2019
Accepted: 24 February 2020
First Online: 2 March 2020
Ethics approval and consent to participate
: 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. For this type of retrospective observational study using computerized data, formal consents were not required, according to the French Law and the recommendations of the Institutional Review Board (Clinical Investigation and Research Department) of the University Hospital of Toulouse.
: The authors declare that they have no competing interests.