title: Preservation of urine with sulfamic acid in soluble packages.
mesh_terms: D000577:Amides; D002624:Chemistry, Clinical; D004349:Drug Packaging; D006801:Humans; D008722:Methods; D011142:Polyvinyl Alcohol; D011309:Preservation, Biological; D013451:Sulfonic Acids; D014556:Urine / Q000032:analysis
chemical_list: D000577:Amides; D013451:Sulfonic Acids; D011142:Polyvinyl Alcohol