331
Participants
Start Date
April 30, 2007
Primary Completion Date
May 31, 2010
Study Completion Date
January 11, 2013
Department of Periodontology, UNC School of Dentistry, Chapel Hill
Duke University, Durham
University of Alabama at Birmingham Department of Ostetrics and Gynecology, Birmingham
University of Texas Health Science Center, San Antonio
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
University of North Carolina, Chapel Hill
OTHER