- Correspondence to Dr Stephanie Griffin, Department of Community, Environment & Policy, Mel & Enid Zuckerman College of Public Health (MEZCOPH), The University of Arizona, PO Box 245215, Tucson AZ 85724, USA;
- Received August 4, 2015
- Revised October 1, 2015
- Accepted October 20, 2015
- First published November 11, 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.