Assertion: endotracheal tube's end | /r/AtLocation | the trachea of a patient
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Source sentences:
text: No. 4,519,388 issued to Schwanbom, et al. describes a respirator device which has one end located in the trachea of a patient, and is combined with the use of a venturi tube to alleviate problems caused by coughing spells and reduced barotraumas.