title: An apparatus for the quantitative analysis of volatile compounds in urine.
mesh_terms: D001322:Autoanalysis; D002526:Cerebellar Diseases / Q000652:urine; D002849:Chromatography, Gas / Q000295:instrumentation*; D003201:Computers; D006371:Helium; D006801:Humans; D006859:Hydrogen; D008722:Methods; D009584:Nitrogen; D013696:Temperature; D014556:Urine / Q000032:analysis*
chemical_list: D006371:Helium; D006859:Hydrogen; D009584:Nitrogen