title: Use of a color coded gastric tube.
mesh_terms: D003116:Color; D004322:Drainage / Q000295:instrumentation; D004386:Duodenum; D005751:Gastric Lavage / Q000295:instrumentation; D006801:Humans; D007441:Intubation, Gastrointestinal / Q000295:instrumentation* / Q000379:methods