1 Center for Healthcare Organization and Implementation Research, Edith Nourse Rogers Veterans Affairs Medical Center, Bedford, MA, USA. Barbara.Bokhour@va.gov.
2 Department of Health Law, Policy & Management, Boston University School of Public Health, Boston, MA, USA. Barbara.Bokhour@va.gov.
3 Center for Healthcare Organization and Implementation Research, Edith Nourse Rogers Veterans Affairs Medical Center, Bedford, MA, USA.
4 Department of Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA.