Reduced effect of morphine in midbrain raphe lesioned rats.
D000818:Animals; D001923:Brain Chemistry; D001927:Brain Diseases / Q000378:metabolism*; D005260:Female; D006897:Hydroxyindoleacetic Acid / Q000032:analysis / Q000502:physiology; D008636:Mesencephalon / Q000503:physiopathology*; D009020:Morphine / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D010146:Pain; D051381:Rats; D012701:Serotonin / Q000032:analysis / Q000502:physiology*
D012701:Serotonin; D006897:Hydroxyindoleacetic Acid; D009020:Morphine