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. 2015 Sep 18;2015(9):CD006915. doi: 10.1002/14651858.CD006915.pub3

9. Change in CO2 within the first hour after starting heliox treatment.

  Experimental
n
Experimental
mmHg (SD)
Control
n
Control
mmHg (SD)
Cambonie 2006 10 ‐2.2 (0.78) 9 ‐2.1 (0.93)
Martinón‐Torres 2008 12 ‐9.7 (3.3) 12 ‐5.4 (1.6)

SD: standard deviation