- Correspondence to R Grant Steen, Medical Communications Consultants LLC, 103 Van Doren Place, Chapel Hill, NC 27517, USA;
- Received May 31, 2010
- Revised July 29, 2010
- Accepted August 13, 2010
- First published November 15, 2010.
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.