Animal article mouse Mice 123 Support, Non-U.S. Gov't 111 nonhuman 103 priority journal 74 animal experiment 64 animal cell 45 Mice, Inbred BALB C 41 controlled study 40 Liver 37 Male 37 animal 36 Animalia 29 liver 29 animal model 28 Kinetics 26 animal tissue 26 Mammary Neoplasms, Experimental 23 In Vitro 20 intraperitoneal drug administration 20 5 aminolevulinate synthase 19 5-Aminolevulinate Synthetase 19 Heme 19 Cell Division 18 Female 18 male 18 Thiosulfate Sulfurtransferase 16 enzyme activity 16