title: Treatment of sickle crisis.
mesh_terms: D000755:Anemia, Sickle Cell / Q000188:drug therapy* / Q000209:etiology; D002648:Child; D006801:Humans; D007275:Injections, Intravenous; D014508:Urea / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D014508:Urea