<prompt> Pigment gallstones usually not seen in:Gilbes syndromeAlcoholic cirrhosisCystic fibrosisClofibrate therapy  <response>: Clofibrate therapy: Increased biliary secretion of cholesterol, leads to cholesterol gallstones. Pigment stones are more common in patients who have chronic hemolytic states, liver cirrhosis, Gilbes syndrome, or cystic fibrosis. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Page 2618 