In the University of Michigan Hospital at Ann Arbor, Virgil Bailey. 30. farmer, last week realized what an uncommonly deep breath he had taken five years before. At that time he had inhaled while in a dental chair. The dentist was changing a burr in his tooth drill. The burr slipped from the dentist's fingers, disappeared. The dentist surmised that it fell in some fold of his or Virgil Bailey's clothes, hunted no further. But Virgil Bailey had inhaled the burr. Lately deep-breathing Mr. Bailey experienced chest pains. X-rays showed the burr in the...
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