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Fig. 2 | Clinical Hypertension

Fig. 2

From: History and evolution of blood pressure measurement

Fig. 2

(A) Heartguide, a miniaturized version of an oscillometric device (B) Galaxy watch, a smartwatch requiring regular calibration with a cuff-based device (C) Aktiia, a bracelet using PPG signal (D) BPro, a wrist-worn device using modified applanation tonometry (E) Volume clamping, a cuff-based ring-type device applying the Peñáz principle

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