Last month the world was left stunned by footage of children gasping for air in the wake of a deadly chemical attack in Syria’s Idlib province. But amid the destruction, the story has emerged of a doctor who remained on the frontline, helping the injured. As Middle East Correspondent Sophie McNeill reports, Dr Mamoun Morad plans to return to Syria in a quest to save lives. And a warning, this story contains images that may be distressing to some viewers.

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