About the Authors

Lars Müller

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

L.mueller@dermatologikum.de

Affiliation Department of Vascular Surgery, Dermatologikum Hamburg, Hamburg, Germany

Jens Alm

Roles Investigation, Project administration, Supervision, Writing – review & editing

Affiliation Department of Vascular Surgery, Dermatologikum Hamburg, Hamburg, Germany

Competing Interests

As authors of this study [L.M.,J.A.], we declare that we are employed by Dermatologikum Hamburg GmbH, a nonacademic,commercial company. This does not alter our adherence to PLOS ONE policies on sharing data and materials.