Manometric Measurement of the Sphincter of Oddi in Patients with Common Bile Duct Stones: A Consecutive Study of the Han Population of China

Table 3

Basal SO pressure, amplitude, and frequency in healthy volunteers.

Enrolled numbers	Basal SO pressure; (mmHg)	SO amplitude; (mmHg)	SO frequency; (/min)	Reference
43			Not listed	Gregg and Carr-Locke [13]
25	Not listed			Carr-Locke and Gregg [14]