UPPER AIRWAY OBSTRUCTION AND THE HEIMLICH MANEUVER “How many persons have perished, perhaps in an instant, and in the midst of a hearty laugh, the recital of an amusing anecdote, or the utterance of a funny joke, from the interception at the glottis of a piece of meat, a crumb of bread, a morsel of cheese, or a bit of potato, without suspicion on the part of those around of the real nature of the case!” Although Gross wrote this comment in 1854, more than 100 years passed before Haugen, in…