Fig. 2From: Relation of cholesterol metabolism to pediatric gallstone disease: a retrospective controlled studya Correlation between serum ratios to cholesterol of squalene and sitosterol in the cholecystectomized subjects with black pigment stones. r = Spearman rank correlation coefficient. b Correlation between stone cholestanol proportion and serum bile acids in the cholecystectomized subjects with black pigment stones. r = Spearman rank correlation coefficient. c Correlation between ratios to cholesterol of stone sitosterol and serum cholestanol in the cholesterol stone subgroup. r = Spearman rank correlation coefficientBack to article page