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. Author manuscript; available in PMC: 2015 Jan 26.
Published in final edited form as: Mol Phylogenet Evol. 2012 Jul 27;66(2):469–478. doi: 10.1016/j.ympev.2012.07.013

Figure 2.

Figure 2

Oxygen equilibrium curves for human Mb and Hb in whole blood. The dashed curve is a hyperbolic oxygen equilibrium curve with the same P50 (the partial pressure of oxygen at which Hb is half saturated) as human Hb (26 torr).