- Correspondence to Mrs Laura Chiang, Division of Violence Prevention, CDC, 1600 Clifton Road, NE, Mailstop F-64, Atlanta, GA 30329, USA;
- Received September 2, 2015
- Revised January 4, 2016
- Accepted January 6, 2016
- First published April 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.