The 25-year old, who asked not to be named, jumped out of her car to assist a 74-year old man who had been hit by a bus on Thursday.
The young doctor kept the man breathing until an ambulance arrived, while the thief reportedly jumped into her car and calmly drove off.
Superintendent Ian Palmer, of Greater Manchester Police, described the incident as ‘despicable’.
The pedestrian suffered serious head injuries and is critically ill in Hope Hospital, Salford.
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