Affiliation: | 1.Pennsylvania State University, 330B Thomas Building, University Park, PA, 16802, USA ;2.Department of Statistics, Pennsylvania State University, University Park, PA, USA ;3.Department of Sociology and Criminology, Pennsylvania State University, University Park, PA, USA ;4.Biocomplexity Institute and Initiative, University of Virginia, 1100 Wilson Blvd., Arlington, VA, USA ; |