title: Detection and quantitative measurement of fecal water pollution using a solid-injection gas chromatographic technique and fecal steroids as a chemical index.
mesh_terms: D002776:Cholestanes / Q000032:analysis; D002784:Cholesterol / Q000032:analysis; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D004926:Escherichia coli / Q000302:isolation & purification; D005243:Feces / Q000032:analysis*; D008722:Methods; D013261:Sterols / Q000032:analysis; D014871:Water Microbiology; D014876:Water Pollution / Q000032:analysis*
chemical_list: D002776:Cholestanes; D013261:Sterols; D002784:Cholesterol