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. Author manuscript; available in PMC: 2013 Jan 15.
Published in final edited form as: Respir Physiol Neurobiol. 2011 Oct 29;180(1):79–87. doi: 10.1016/j.resp.2011.10.012

Figure 1. Minute ventilation in normoxia, hypoxia and hypercapnia.

Figure 1

Ventilation during normoxia (A), hypoxia (B) and hypercapnia (C) in male (black bars, shaded black bars) and female (white bars, shaded white bars) rats at postnatal ages 10-11, 12-13, 14-15, 30 and 90 days. Asterisk indicates statistically significant sex differences (P< 0.05). Shaded bars indicate a statistically significant difference compared to the previous age group of the same sex (P<0.05).