Thursday, December 4, 2008 - 9:38PM EST

United States

West Virginia

Name of AuthorInstitutional Affiliation
Kelley GADepartment of Community Medicine, School of Medicine, West Virginia University, Morgantown, WV 26506-9190, USA. gkelley@hsc.wvu.edu
Kelley KSDepartment of Community Medicine, School of Medicine, West Virginia University, Morgantown, WV 26506-9190, USA.