title: Specific spot test for homocystinuria in filter paper saturated with urine.
mesh_terms: D000613:Aminobutyrates / Q000652:urine; D003486:Cyanides; D005292:Ferricyanides; D006711:Homocystine / Q000652:urine; D006712:Homocystinuria / Q000175:diagnosis* / Q000652:urine; D006801:Humans; D007231:Infant, Newborn; D008403:Mass Screening; D008722:Methods; D012835:Silver Nitrate
chemical_list: D000613:Aminobutyrates; D003486:Cyanides; D005292:Ferricyanides; D006711:Homocystine; D012835:Silver Nitrate