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. Author manuscript; available in PMC: 2015 Jan 23.
Published in final edited form as: Pediatr Pulmonol. 2013 Feb 8;48(12):1224–1230. doi: 10.1002/ppul.22764

Fig. 2.

Fig. 2

Comparison of vascular endothelial growth factor (VEGF) and erythropoietin (EPO) for infants and toddlers at high altitude (HA; black bars) compared to low altitude (LA; grey bars) for males and females. A: Serum levels of log VEGF were significantly higher for infants and toddlers at HA compared to LA. The effect of HA was present for both males and females analyzed separately, while there were no significant differences between males and females at HA or LA. B: Serum levels of log EPO were significantly higher for infants and toddlers at HA compared to LA. The effect of HA was present for males, while the difference for females approached statistical significance (P = 0.06). There were no significant differences between males and females at either HA or LA.