Neoplasm Transplantation Mice 52 article 50 controlled study 46 mouse 46 nonhuman 46 Animals 44 priority journal 42 animal experiment 34 animal model 34 Female 28 Mice, Inbred BALB C 28 animal cell 26 female 26 animal tissue 22 Mice, Nude 20 Cell Division 18 human 18 Mammary Neoplasms, Experimental 16 Tumor Cells, Cultured 16 carcinogenesis 16 Adenocarcinoma 14 Male 14 RNA, Messenger 14 cell proliferation 14 human cell 14 protein expression 14 unclassified drug 14 Gene Expression Regulation, Neoplastic 12 Humans 12