- Dr Ahmed A Arif, The University of North Carolina at Charlotte, Department of Public Health Sciences, College of Health and Human Services, 9201 University City Blvd, CHHS Building 429, Charlotte, NC 28223, USA;
- Accepted October 24, 2008
- First published January 22, 2009.
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.