About the Authors

Praveen Kumar Pathak

pkp_pathak@rediffmail.com

Affiliation International Institute for Population Sciences, Mumbai, Maharashtra, India

Abhishek Singh

Affiliation Department of Public Health and Mortality Studies, International Institute for Population Sciences, Mumbai, Maharashtra, India

S. V. Subramanian

Affiliation Department of Society, Human Development and Health, Harvard School of Public Health, Boston, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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