About the Authors

Anthony F. J. van Raan

vanraan@cwts.leidenuniv.nl

Affiliation Centre for Science and Technology Studies (CWTS), Leiden University, Leiden, The Netherlands

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

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