title: Purple urine bags.
mesh_terms: D004396:Coloring Agents; D006801:Humans; D007203:Indigo Carmine; D007211:Indoles; D013048:Specimen Handling / Q000295:instrumentation*; D014556:Urine
chemical_list: D004396:Coloring Agents; D007211:Indoles; D007203:Indigo Carmine