text:  Heart_S020205-338_Timolol_0.25d Heart, Timolol, 0.25d strain: Sprague Dawley, CD-IGS; tissue: Heart; compound: Timolol; dose: 10 mg/kg; time: 0.25 d; vehicle: Water; route: Oral Gavage; Sex: Male; rna extraction date: 2002-03-21; hybridization date: 2002-04-22