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. Author manuscript; available in PMC: 2012 Nov 13.
Published in final edited form as: J Appl Physiol (1985). 2005 Jun 30;99(5):2020–2027. doi: 10.1152/japplphysiol.00410.2004

Fig. 3.

Fig. 3

Pcrit (top) and loop gain (bottom) in 12 men and 12 women with obstructive sleep apnea who were matched for body mass index (BMI; within 2 kg/m2). Individual and group means (±SE) are presented. Subjects identified by horizontal error bars and shaded symbols are individuals who did not develop periodic breathing, and thus their loop gain may be lower than the value indicated. *P = 0.005.