NEW YORK, NY - OCTOBER 29:  Hundreds of health workers participate in a "die-in" and demonstration organized by Physicians for Human Rights near the United Nations to draw attention to health workers killed in Syria on October 29, 2015 in New York City. As the war in Syria grinds on, nearly 700 medical personel have been killed in the fighting, according to the nonprofit human rights organization. The health workers wore white smocks to represent lab coats and each held up a sheet of paper with the name of a health worker killed. (Photo by Spencer Platt/Getty Images)