1. Harvard Medical School, Massachusetts Eye & Ear Infirmary, 243 Charles Street, Boston, MA 02114, USA
2. Quintiles, 201 Broadway, Cambridge, MA 02139, USA
3. Quintiles, 1801 Rockville Pike, Suite 300, Rockville, MD 20852, USA
4. Amazing Charts, 111 Huntington Ave., 4th Floor, Boston, MA 02199, USA
5. Agency for Healthcare Research & Quality, 540 Gaither Road, Rockville, MD 20850, USA