title: Effect of p-chlorophenylalanine and brain lesions on pain sensitivity and morphine analgesia in the rat.
mesh_terms: D000698:Analgesia; D000818:Animals; D001921:Brain / Q000378:metabolism*; D002940:Circadian Rhythm; D003624:Darkness; D004924:Escape Reaction; D010134:Fenclonine / Q000494:pharmacology*; D008027:Light; D009020:Morphine / Q000494:pharmacology*; D010146:Pain / Q000378:metabolism*; D051381:Rats; D012701:Serotonin / Q000378:metabolism*; D013238:Stereotaxic Techniques; D013687:Telencephalon / Q000378:metabolism; D013997:Time Factors
chemical_list: D012701:Serotonin; D009020:Morphine; D010134:Fenclonine