About the Authors

Zulma Ortiz

cie@epidemiologia.anm.edu.ar

Affiliation Argentine Collaborating Center of the Iberoamerican Cochrane Network, Buenos Aires, Argentina

Pablo Perel

Affiliation Argentine Collaborating Center of the Iberoamerican Cochrane Network, Buenos Aires, Argentina

Jordi Pardo

Affiliation Argentine Collaborating Center of the Iberoamerican Cochrane Network, Buenos Aires, Argentina

Competing Interests

The authors have declared that no competing interests exist.