Can pigment gallstones be induced by biliary stricture and prevented by medicine in Guinea pigs?

Table 3 Gallbladder volume and perimeter of CBD after partial ligation of CBD (mean ± SD, n)

Items	S group	S+M group	C+M group	C group
GB volume (mL)	4.5 ± 1.8 (22)	4.9 ± 2.5 (20)	1.3 ± 0.7 (25)	1.5 ± 0.6 (26)b
CBD perimeter (mm)	8.1 ± 1.3 (21)	8.5 ± 1.6 (21)	4.1 ± 0.2 (15)	4.0 ± 0.1 (16)b

S: stricture; S+M: stricture plus medicine; C: coutrol; C+M: medicine control. GB: gallbladder.

^bP < 0.01 vs C groups, t test.