%0 Journal Article %A J-W. Fitting %T Sniff nasal inspiratory pressure: simple or too simple? %D 2006 %R 10.1183/09031936.06.00007906 %J European Respiratory Journal %P 881-883 %V 27 %N 5 %U https://erj.ersjournals.com/content/erj/27/5/881.full.pdf