Received: 10 October 2018
Accepted: 14 July 2019
First Online: 24 July 2019
Ethics approval and consent to participate
: Permission for access to patient records was obtained from the hospital research manager and performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. Ethics committee approval was not required.
: All cases reported in this article have provided consent to publication.
: The authors declare that they have no competing interests.