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In two groups of patients, oxygen saturation was determined in blood drawn simultaneously from several locations: superior vena cava (SSVCO2) (central venous blood); right atrium (SRAO2); right ventricle (SRVO2); pulmonary artery (SO2) systemic artery (SARTO2) and inferior vena cava (SIVCO2). Values
Lee et al. (Mon,) studied this question.