Multicenter Study

Endobronchial ultrasound skills and tasks assessment tool: assessing the validity evidence for a test of endobronchial ultrasound-guided transbronchial needle aspiration operator skill.

Am. J. Respir. Crit. Care Med. 2012 Oct 15; 186 (8): 773-9.
Randomized Controlled Trial

Endobronchial ultrasonography guidance for transbronchial needle aspiration using a double-channel bronchoscope.

Chest. 2005 Jul 1;128(1):388-93.
Randomized Controlled Trial

Wet laboratory versus computer simulation for learning endobronchial ultrasound: a randomized trial.

Can. Respir. J. 2012 Sep 1;19(5):325-30.