%0 Journal Article %A Narongsak Nakwan %A Pornpat Pornladnum %A Jittamas Chokechuleekorn %A Pathikan Dissaneevate %T Severe upper airway obstruction in a preterm infant with nasal continuous positive airway pressure %D 2009 %R 10.1136/bcr.09.2008.0889 %J BMJ Case Reports %P bcr0920080889 %V 2009 %U