About the Authors

Michał Krawczyk

mkrawczyk@wne.uw.edu.pl

Affiliation University of Warsaw, Dluga 44/50, 00–241, Warsaw, Poland

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MK. Performed the experiments: MK. Analyzed the data: MK. Contributed reagents/materials/analysis tools: MK. Wrote the paper: MK.