ALEPPO, SYRIA - APRIL 29: A health worker carries a girl, who has been rescued from the wreckage, after the helicopters belonging to the Syrian army carried out a barrel bomb attack on a medical center in the opposition controlled Bustan al-Qasr neighborhood of Aleppo, Syria on April 29, 2016.  (Photo by Ibrahim Ebu Leys/Anadolu Agency/Getty Images)