- Correspondence to Dr Lisa M Bodnar, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, A742 Crabtree Hall, 130 DeSoto Street, Pittsburgh, PA 15261, USA; ,
- Received October 13, 2015
- Revised December 4, 2015
- Accepted December 7, 2015
- First published January 4, 2016.
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.