1 Division of General Internal Medicine, Massachusetts General Hospital, Harvard Medical School, 100 Cambridge St, Suite 1600, Boston, MA, 02114, USA. Jennifer.Haas@mgh.harvard.edu.
2 Division of Preventive and Behavioral Medicine, Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, 368 Plantation Street, Worcester, MA, 01605, USA.
3 Institute for Clinical Research and Health Policy Studies and the Department of Medicine, Tufts Medical Center, 800 Washington St, Boston, MA, 02111, USA.
4 Women's Health Unit, Section of General Internal Medicine, Evans Department of Medicine, Boston Medical Center and Boston University School of Medicine, 801 Massachusetts Ave, Boston, MA, 02118, USA.