筛选: Committee Hall, Randy A, Emory University 删除限定条件 Committee: Hall, Randy A, Emory University Committee Holmes, Philip, University of Georgia 删除限定条件 Committee: Holmes, Philip, University of Georgia Committee Howell, Leonard, Emory University 删除限定条件 Committee: Howell, Leonard, Emory University Degree PhD 删除限定条件 Degree: PhD