Filtering by: Committee John P. McCracken, Universidad del Valley de Guatemala Remove constraint Committee: John P. McCracken, Universidad del Valley de Guatemala Degree Th.D. Remove constraint Degree: Th.D. Research Field Health Sciences, Epidemiology Remove constraint Research Field: Health Sciences, Epidemiology School Laney Graduate School Remove constraint School: Laney Graduate School Submission Type Dissertation Remove constraint Submission Type: Dissertation