筛选: Committee chair name sim McClellan, William, Emory University 删除限定条件 Committee chair name sim: McClellan, William, Emory University Keyword poverty 删除限定条件 Keyword: poverty Research Field Health Sciences, Medicine and Surgery 删除限定条件 Research Field: Health Sciences, Medicine and Surgery Research Field Sociology, Public and Social Welfare 删除限定条件 Research Field: Sociology, Public and Social Welfare