About the Authors

Xiang Wang, Nickolay Vassilev Bukoreshtliev, Hans-Hermann Gerdes
University of Bergen, Department of Biomedicine, Bergen, Norway

Corresponding Author


Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NVB XW HHG. Performed the experiments: NVB XW. Analyzed the data: NVB XW HHG. Wrote the paper: XW HHG.