Text and Data Mining valid from 2019-09-18
Received: 3 April 2019
Accepted: 23 August 2019
First Online: 18 September 2019
Ethics approval and consent to participate
: The sample-related data analyzed for this manuscript was entirely retrospective with no patient or patient-related identifiers included in the analysis. No waivers or institutional approval was required. Each patient received written informed consent for participation.
: Informed written consent was obtained from participants for publication for images and other clinical information relating to these cases to be reported for academic purpose.
: The authors declare that they have no competing interests.