RT Journal Article SR Electronic T1 Endobronchial ultrasonography: extending the reach of the bronchoscope beyond the airway wall JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 586 OP 586 VO 169 IS 6 A1 Tremblay, Alain YR 2003 UL http://www.cmaj.ca/content/169/6/586.abstract