经支气管镜针吸活检术在气管纵隔周围病变诊断中的临床应用
경지기관경침흡활검술재기관종격주위병변진단중적림상응용
Clinical appilication of endobronchial ultrasound guided transbronchial needle aspiration in the diagnosis of mediastinal lesions around the trachea
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