title: Sample contamination by test strips.
mesh_terms: D005189:False Positive Reactions; D005998:Glycine / Q000652:urine*; D006801:Humans; D007659:Ketones / Q000652:urine*; D011934:Reagent Strips
chemical_list: D007659:Ketones; D011934:Reagent Strips; D005998:Glycine