1 Department of Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA; Center for Women's Health Research, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA. Electronic address: Judy.Regensteiner@ucdenver.edu.
2 Department of Emergency Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA; Center for Women's Health Research, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO 80045, USA.
3 College of Science, Health and Engineering and Research Centre for Cardiovascular Biology and Disease, La Trobe University, Melbourne, VIC, Australia.
4 Office of Research on Women's Health, National Institutes of Health, Bethesda, MD, USA.