Received: 3 July 2019
Accepted: 10 March 2020
First Online: 26 March 2020
Ethics approval and consent to participate
: The data used in this study is openly accessible to the public. No administrative permissions were required to access the raw data from LMPH-ESU. All data of cases was anonymised before its use<b>.</b>
: Not applicable.
: The authors declare that they have no competing interests.