RT Journal Article SR Electronic T1 Visual identification of pulmonary ventilation and perfusion: a new application of lung ultrasound JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 960 OP 961 DO 10.1136/thoraxjnl-2016-208768 VO 72 IS 10 A1 Guido Tavazzi A1 Francisca Ana Caetano A1 Sachin Shah A1 Joana Alcada A1 Susanna Price YR 2017 UL http://thorax.bmj.com/content/72/10/960.abstract AB