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Table 2 Estimated exponents and 95% confidence interval for all patients and arteries with low tortuosity using artery size measurements A and B

From: Does the principle of minimum work apply at the carotid bifurcation: a retrospective cohort study

Artery size measurement method Tortuosity < 0.1 All subjects
A 1.23 (1.09-1.34) 1.32 (1.24-1.40)
B 1.35 (1.20-1.46) 1.30 (1.13-1.42)