breast carcinoma article 28 priority journal 28 nonhuman 24 controlled study 22 human 22 Female 20 mouse 20 Humans 16 Animals 14 Breast Neoplasms 14 cell proliferation 14 female 14 Mice 12 Mice, Inbred BALB C 12 animal cell 12 animal experiment 12 animal model 12 protein expression 12 Receptors, Progesterone 10 medroxyprogesterone acetate 10 Adenocarcinoma 8 Mammary Neoplasms, Experimental 8 animal tissue 8 progesterone receptor 8 Adult 6 Breast cancer 6 Cell Proliferation 6 Gene Expression Regulation, Neoplastic 6 Heparin 6