A woman is treated for what appears to be breathing difficulties at a clinic in the north of Aleppo
A video posted on the Facebook page of a British-trained doctor appears to show victims of a Syrian regime assault on Aleppo foaming at the mouth and showing symptoms consistent with a chemical weapons attack.
Experts believe that chemical weapons may have been dropped on Kurdish residents of Aleppo's Sheikh Massoud region during an attack which saw two babies and a woman killed earlier this month.
It is thought that the April 13 assault may have been in revenge for residents' decision to defect to support the rebels.
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