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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Black bile stones are composed of:
assistant
The correct answer is  There are cholesterol stones and pigment stones. Cholesterol gallstones usually contain >50% cholesterol monohydrate. Pigment stones are composed primarily of calcium bilirubinate; they contain <20% cholesterol. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Pages 2616-17