1. Department of Earth and Environmental Sciences. University of Pennsylvania, Philadelphia , Pennsylvania, USA
2. Magee-Womens Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences , School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
3. Department of Family and Community Health, University of Maryland School of Nursing, Baltimore , Maryland, USA
4. Department of Health Policy and Management, School of Public Health, West Virginia University , Morgantown, West Virginia, USA
5. College of Business and Management, Lynn University, Boca Raton , Florida, USA
6. VA Pittsburgh Healthcare System and Department of Medicine, School of Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania, USA