1. Department of Anthropology, UMass Amherst, Amherst, MA 01003, USA
2. Nuffield Department of Medicine, University of Oxford, Oxford OX3 7BN, UK
3. Department of Anthropology, Durham University, Durham DH1 3LE, UK
4. Department of Obstetrics and Gynecology, University College Cork, T12 E7WX Cork, Ireland
5. Parkview Medical College, Sylhet 3100, Bangladesh