title: Paradoxical pain.
authors: R
authors: R
authors: Twycross
mesh_terms: D006801:Humans; D009020:Morphine / Q000627:therapeutic use; D009619:Nociceptors / Q000187:drug effects; D010146:Pain / Q000209:etiology*; D017288:Pain Threshold
chemical_list: D009020:Morphine