text:  Bone Marrow_Topotecan_Vehicle 2 [1344-03F_3M 32] Bone Marrow_Topotecan followed by 5% Dextrose strain: Sprague-Dawley; Sex: Male; age: 8 weeks; tissue: Bone marrow; compound 1: Topotecan; dose 1: 4.7 mg/kg; vehicle 1: 0.9% NaCl; vehicle 2: 5% Dextrose in water; time: 1 hour; route: intravenous (IV)