title: Chocolate-coloured serum in methaemoglobinaemia.
authors.affiliation: Department of Internal Medicine, Hospital San Pedro, La Rioja, Spain. Electronic address: rbaezat@riojasalud.es.
authors.forename: Ramón
authors.initials: R
authors.lastname: Baeza-Trinidad
authors.affiliation: Intensive Care Unit, Hospital San Pedro, La Rioja, Spain.
authors.forename: Mirian Ruiz
authors.initials: MR
authors.lastname: de La Cuesta-López
mesh_terms: D003116:Color; D006801:Humans; D013287:Illicit Drugs / Q000009:adverse effects; D008297:Male; D008708:Methemoglobinemia / Q000175:diagnosis / Q000209:etiology*; D008875:Middle Aged; D019966:Substance-Related Disorders / Q000150:complications; D014556:Urine
chemical_list: D013287:Illicit Drugs