Research Article

Development and Validation of a Photoplethysmography System for Noninvasive Monitoring of Hemoglobin Concentration

Figure 5

Bland–Altman plot for the Hb values. (a) Differences and mean of the Lab_tHb and SpHb_PLS and (b) differences and mean of the Lab_tHb and SpHb_BP.
(a)
(b)