Structure of the common bile duct in man: presence or absence of smooth muscle.
D000293:Adolescent; D000328:Adult; D000368:Aged; D003135:Common Bile Duct / Q000033:anatomy & histology*; D006801:Humans; D008853:Microscopy; D008875:Middle Aged; D009130:Muscle, Smooth; D013194:Staining and Labeling