Filtering by: Committee Rather, Phil N, Emory University Remove constraint Committee: Rather, Phil N, Emory University Committee Shafer, William M, Emory University Remove constraint Committee: Shafer, William M, Emory University Department Biological and Biomedical Sciences Remove constraint Department: Biological and Biomedical Sciences Year 2008 Remove constraint Year: 2008 Research Field Biology, Microbiology Remove constraint Research Field: Biology, Microbiology Submission Type Dissertation Remove constraint Submission Type: Dissertation