title: Pre-emptive analgesia.
authors: D J
authors: DJ
authors: Bush
mesh_terms: D000698:Analgesia / Q000379:methods*; D000768:Anesthesia, General; D000772:Anesthesia, Local; D000818:Animals; D006801:Humans; D009473:Neuronal Plasticity / Q000502:physiology; D010149:Postoperative Pain / Q000503:physiopathology / Q000517:prevention & control*; D051381:Rats; D013997:Time Factors