affiliation not provided to SSRN, University of Colorado at Denver - Colorado School of Public Health, University of Wyoming, University of North Dakota, University of Colorado at Denver - Colorado School of Public Health, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Colorado at Denver - Colorado School of Public Health, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Colorado at Denver - School of Medicine, affiliation not provided to SSRN and University of Colorado at Denver - Colorado School of Public Health