APA

Singh N. P., Walker R. J. E., Cowan F., Davidson A. C. & Roberts D. N. (20140922). Retrograde air escape via the nasolacrimal system: a previously unrecognized complication of continuous positive airway pressure in the management of obstructive sleep apnea. : The Annals of otology, rhinology, and laryngology.

Chicago

Singh Narinder Pal, Walker Robbie James Eades, Cowan Fiona, Davidson Arthur Craig and Roberts David Newton. 20140922. Retrograde air escape via the nasolacrimal system: a previously unrecognized complication of continuous positive airway pressure in the management of obstructive sleep apnea. : The Annals of otology, rhinology, and laryngology.

Harvard

Singh N. P., Walker R. J. E., Cowan F., Davidson A. C. and Roberts D. N. (20140922). Retrograde air escape via the nasolacrimal system: a previously unrecognized complication of continuous positive airway pressure in the management of obstructive sleep apnea. : The Annals of otology, rhinology, and laryngology.

MLA

Singh Narinder Pal, Walker Robbie James Eades, Cowan Fiona, Davidson Arthur Craig and Roberts David Newton. Retrograde air escape via the nasolacrimal system: a previously unrecognized complication of continuous positive airway pressure in the management of obstructive sleep apnea. : The Annals of otology, rhinology, and laryngology. 20140922.