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Relationship between coronary blood flow (A), myocardial oxygen delivery (B), coronary venous Po2 (C) relative to arterial oxygen content in response to hemodilution (solid line; Refs. 18, 19, 46, 65, 76, 113) and hypoxemia (dashed line; Refs. 37, 45, 56, 74, 82, 114, 115). Arterial oxygen content was used to normalize the level of oxygen deficit in each study.
