筛选: Committee Liu, Yang, Emory University 删除限定条件 Committee: Liu, Yang, Emory University Committee Knust, Barbara, Centers for Disease Control and Prevention 删除限定条件 Committee: Knust, Barbara, Centers for Disease Control and Prevention Graduation year sim 2013 删除限定条件 Graduation year sim: 2013 Research Field Biology, Ecology 删除限定条件 Research Field: Biology, Ecology Submission Type Master's Thesis 删除限定条件 Submission Type: Master's Thesis