Assertion: mediastinum's lymph node | /r/HasProperty | tbln
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text: 25- or 27-gauge, 1.5-inch needle on a 6-ml syringe) or core biopsy (20-gauge Wescott needle) of peripherally located discrete nodules and tracheobronchial lymph nodes (TBLNs) can be effectively guided using ultrasound, fluoroscopy, or CT.