The Cincinnati chest surgeon told The Associated Press in a February 2014 interview that thousands of deaths reported annually from choking prompted him in 1972 to seek a solution. During the next two years, he led a team of researchers at Jewish Hospital in Cincinnati. He successfully tested the technique by putting a tube with a balloon at one end down an anesthetized dog's airway until it choked. He then used the maneuver to force the dog to expel the obstruction. ...
