Blood drops are seen on the stairway of a field hospital, after what activists said was shelling by forces loyal to Syria's President Bashar al-Assad in the Douma neighborhood of Damascus, Syria December 2, 2015. Douma in Syria, an area controlled by rebels fighting to topple President Bashar al-Assad, has been shelled continuously for the past three years. The injured are taken to basements and shelters transformed into field hospitals run by medical staff who have stayed in the battered neighbourhood of Damascus. REUTERS/Bassam Khabieh PICTURE 24 OF 37 - SEARCH "KHABIEH HOSPITAL" FOR ALL IMAGES