Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Center for Primary Care and Outcomes Research/Center for Health Policy, Stanford University, Stanford, California, USA School of Public Health, University of California, Berkeley, California, USA Department of Medicine, Center for Health and the Social Sciences, University of Chicago, Chicago, Illinoi...

1Center for Immunotherapy of Cancer and Infectious Diseases, Department of Immunology, University of Connecticut School of Medicine, Farmington, CT; 2Department of Microbiology & Immunology, Medical University of South Carolina, Charleston, SC; 3Lea’s Foundation Center for Hematological Disorders, University of Connecticut School of Medicine, Farmington, CT; and 4Department of Pharmacology, Uni...

Division of Plastic and Reconstructive Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, Department of Plastic and Reconstructive Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA, Hansjörg Wyss Department of Plastic Surgery, New York University Langone Medical Center, New York, NY, USA, Division of Plastic and Reconstructive Surgery, Department o...

Department of Preventive Medicine and Department of Medicine, Feinberg School of Medicine, and Robert H. Lurie Comprehensive Cancer Center, Northwestern University; Department of Pathology, University of Illinois College of Medicine, University of Illinois at Chicago, Chicago, Illinois; Epidemiology and Community Health Division, School of Public Health, and Department of Laboratory Medicine an...

Heart and Vascular Institute, Henry Ford Hospital, Detroit, MI, USA; Department of Medicine, Henry Ford Hospital, Detroit, MI, USA; Hennepin County Medical Center, University of Minnesota, Minneapolis, MN, USA; Center for Cardiovascular Innovation, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA,...

∗Haas School of Business, UC Berkeley, NBER, and CEPR, 545 Student Services Building, Berkeley, CA 94720-1900, tel: (510) 642 3421, email: [email protected]. †Sloan School of Management, MIT, and NBER, E52-434, 50 Memorial Drive, Cambridge, MA 02142, tel: (617)253-2289, e-mail: [email protected]. ‡University of Chicago Booth School of Business and NBER, 5807 South Woodlawn Avenue, Office ...

Department of Preventive Medicine and Department of Medicine, Feinberg School of Medicine, and Robert H. Lurie Comprehensive Cancer Center, Northwestern University; Department of Pathology, University of Illinois College of Medicine, University of Illinois at Chicago, Chicago, Illinois; Epidemiology and Community Health Division, School of Public Health, and Department of Laboratory Medicine an...