Fig. 4From: Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatcha Distribution of SBP. b Distribution of DBP. c Correlation analysis of systolic blood pressure by 30 subjects. d Correlation analysis of diastolic blood pressure by 30 subjects. e Bland–Altman plots of systolic blood pressure. f Bland–Altman plots of diastolic blood pressureBack to article page