Bakshi, Sumitra G McGrath MAC video laryngoscope versus direct laryngoscopy for the placement of double-lumen tubes: A randomised control trial. [electronic resource] - Indian journal of anaesthesia Jun 2019 - 456-461 p. digital Publication Type: Journal Article ISSN: 0019-5049 Standard No.: 10.4103/ija.IJA_48_19 doi