title: Letter: A simple calculation of the lithogenic index of bile: expressing biliary lipid composition on rectangular coordinates.
mesh_terms: D001646:Bile / Q000032:analysis*; D001647:Bile Acids and Salts / Q000032:analysis; D002769:Cholelithiasis; D002784:Cholesterol / Q000032:analysis; D006801:Humans; D008433:Mathematics; D010713:Phosphatidylcholines / Q000032:analysis; D010743:Phospholipids / Q000032:analysis*; D012044:Regression Analysis; D012995:Solubility
chemical_list: D001647:Bile Acids and Salts; D010713:Phosphatidylcholines; D010743:Phospholipids; D002784:Cholesterol