title: Altered analgesic responses to morphine in differentially housed mice.
mesh_terms: D000698:Analgesia; D000818:Animals; D004361:Drug Tolerance; D008297:Male; D051379:Mice; D009020:Morphine / Q000494:pharmacology*; D012931:Social Environment; D012934:Social Isolation
chemical_list: D009020:Morphine