About the Authors

Sachiko Matsuzaki

sachikoma@aol.com

Affiliations CHU Clermont-Ferrand, CHU Estaing, Chirurgie Gynécologique, Clermont-Ferrand, France, Clermont Université, Université d'Auvergne, ISIT UMR6284, Clermont-Ferrand, France, CNRS, ISIT UMR6284, Clermont-Ferrand, France

Claude Darcha

Affiliation CHU Clermont-Ferrand, Service d’Anatomie et Cytologie Pathologiques, Clermont-Ferrand, France

Competing Interests

The authors declare that this study was supported in part by Karl Storz Endoscopy & GmbH (Tuttlingen, Germany). There are no patents, products in development or marketed products to declare. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: SM CD. Performed the experiments: SM. Analyzed the data: SM CD. Contributed reagents/materials/analysis tools: SM. Wrote the manuscript: SM.