Sleep and forgetting.
D000758:Anesthesia / Q000379:methods*; D000773:Anesthesia, Obstetrical / Q000379:methods; D000777:Anesthetics; D001364:Awareness / Q000187:drug effects; D003071:Cognition / Q000187:drug effects; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall / Q000187:drug effects; D009020:Morphine / Q000494:pharmacology; D011247:Pregnancy
D000777:Anesthetics; D009020:Morphine