Surgery All of the following are true about brown pigment gall stones except A They amy occur due to infection with E Coli B More common in Western countries C May be associated with clonoschis sinensis infestation D They are composed of calcium salts of unconjugated bilirubin with varying amounts of cholesterol and protein 💡 Explanation All of the following are true about brown pigment gall stones except ✓ Correct Answer: B. More common in Western countries