Filtering by: Committee Bostick, Roberd M, Emory University Remove constraint Committee: Bostick, Roberd M, Emory University Committee Kim, Youngmee, University of Miami Remove constraint Committee: Kim, Youngmee, University of Miami Year 2009 Remove constraint Year: 2009 Research Field Health Sciences, Epidemiology Remove constraint Research Field: Health Sciences, Epidemiology Submission Type Dissertation Remove constraint Submission Type: Dissertation