About the Authors
- Aluísio J. D. Barros
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* E-mail: abarros@equidade.org
Affiliation Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
- Cesar G. Victora
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Affiliation Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Analyzed the data: AJB CGV. Wrote the first draft of the manuscript: AJB CGV. Contributed to the writing of the manuscript: AJB CGV. ICMJE criteria for authorship read and met: AJB CGV. Agree with manuscript results and conclusions: AJB CGV.