FILE - In this Sunday, March 11, 2012 file photo, a Syrian 

FILE - In this Sunday, March 11, 2012 file photo, a Syrian rebel reacts after learning the death of at least four comrades and several injured during clashes with Syrian government forces outside a hospital in Idlib, north Syria. In the previous days, troops had encircled Idlib, and tank shells pounded the city from dawn until evening. Rebels dashed through the streets, taking cover behind the corners of buildings as they clashed with the troops. Wounded fighters were piled into trucks bound for makeshift clinics. (AP Photo/Rodrigo Abd, File)
Associated Press
FILE - In this Sunday, March 11, 2012 file photo, a Syrian rebel reacts after learning the death of at least four comrades and several injured during clashes with Syrian government forces outside a hospital in Idlib, north Syria. In the previous days, troops had encircled Idlib, and tank shells pounded the city from dawn until evening. Rebels dashed through the streets, taking cover behind the corners of buildings as they clashed with the troops. Wounded fighters were piled into trucks bound for makeshift clinics. (AP Photo/Rodrigo Abd, File)
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