RT Journal Article SR Electronic T1 The learning curve for EBUS-TBNA JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 352 OP 353 DO 10.1136/thx.2010.146407 VO 66 IS 4 A1 Neal Navani A1 Matthew Nankivell A1 Parthiban Nadarajan A1 Stephen P Pereira A1 Gabrijela Kocjan A1 Sam M Janes YR 2011 UL http://thorax.bmj.com/content/66/4/352.2.abstract AB