Figure 4From: Using the spring constant method to analyze arterial elasticity in type 2 diabeticpatients (a) The oscillation procedure of the arterial pulse is separated by pointsA, B, and C, and divided into two segments A → B and B → C. (b) The first-order differential curve of the arterial pulse waveform. (c)The second-order differential curve of the arterial pulse waveform. Back to article page