About the Authors

Krzysztof Puszynski

Affiliation Silesian University of Technology, Institute of Automatic Control, Gliwice, Poland

Alberto Gandolfi

Affiliation Istituto di Analisi dei Sistemi ed Informatica "A. Ruberti" - CNR, Rome, Italy

Alberto d'Onofrio

alberto.donofrio@i-pri.org

Affiliations Department of Experimental Oncology, European Institute of Oncology, Milan, Italy, International Prevention Research Institute, Lyon, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: Ad AG KP. Analyzed the data: Ad AG KP. Wrote the paper: Ad AG KP. Designed the software used in analysis: KP. Performed numerical simulations: KP. Statistical and computational analysis: KP. Interpretation of computer simulations: Ad AG KP.