About the Authors

Agustin Petroni

apetroni@fmed.uba.ar

Affiliation Departamento de Física, FCEN-UBA, Ciudad Universitaria, (1428) Buenos Aires, Argentina

M. Julia Carbajal

Affiliation Departamento de Física, FCEN-UBA, Ciudad Universitaria, (1428) Buenos Aires, Argentina

Mariano Sigman

Affiliations Departamento de Física, FCEN-UBA, Ciudad Universitaria, (1428) Buenos Aires, Argentina, Universidad Torcuato Di Tella, Sáenz Valiente 1010, (1428) Buenos Aires, Argentina

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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