Table 2. Correlation Analysis (R, P ) and Bland and Altman Comparison for Evaluation of the Accuracy of SpHb Monitoring by the Radical-7® Pulse CO-Oximetry Monitor (HbSpHb) and Hemoglobin Measurement by HemoCue® 201+ (HbHemoCue) vs. Automated Laboratory Hemoglobin Measurement (HbLaboratory)