text:  Liver_S020401-071_Melatonin_2000 mg/kg_5d Liver, Melatonin, 5d strain: Sprague Dawley, CD-IGS; tissue: Liver; compound: Melatonin; dose: 2000 mg/kg; time: 5 d; vehicle: Corn Oil; route: Oral Gavage; Sex: Male; rna extraction date: 2002-04-23; hybridization date: 2002-05-01