Quantitative Analysis of Calcium Bilirubin in Calculus Boris by Infrared Spectrometry Experimental study on long-term toxicity of Naoxinqing Tablets in rats Experimental study on long-term toxicity of Naoxinqing Tablets in rats Protection of Dachaihu Granule on guinea pigs with bile pigment stones Protection of Dachaihu Granule on guinea pigs with bile pigment stones