- Correspondence to Dr Lane E Volpe, Parent-Infant Sleep Lab, Department of Anthropology, Durham University, Durham DH1 3LE, UK;
- Received December 12, 2014
- Revised February 4, 2015
- Accepted March 5, 2015
- First published March 31, 2015.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.