About the Authors

S. Krithika

Affiliation Biological Anthropology Unit, Indian Statistical Institute, Kolkata, India

Suvendu Maji

Affiliation Biological Anthropology Unit, Indian Statistical Institute, Kolkata, India

T. S. Vasulu

vasulu@isical.ac.in

Affiliation Biological Anthropology Unit, Indian Statistical Institute, Kolkata, India

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TV SK. Performed the experiments: SK. Analyzed the data: SK SM. Wrote the paper: TV SK SM. Other: Collected blood samples: SM SK TV. Fieldwork: SM SK.