title: Potential analgesic contribution from morphine-6-glucuronide in CSF.
mesh_terms: D000698:Analgesia; D006801:Humans; D009020:Morphine / Q000097:blood / Q000134:cerebrospinal fluid; D009022:Morphine Derivatives / Q000097:blood / Q000134:cerebrospinal fluid*
chemical_list: D009022:Morphine Derivatives; C035349:morphine-6-glucuronide; D009020:Morphine; C018108:morphine-3-glucuronide