Assertion: bronchoscope | /r/HasProperty | inserted through patient's natural airways
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Source sentences:
text: Standard bronchoscopic biopsy - where a bronchoscope is inserted through a patient's natural airways and used to reach and identify these tiny lesions - provides a diagnostic accuracy of less than 50% for peripheral lesions smaller than 2 cm, thus requiring follow-up visits and the use of alternative biopsy techniques.