title: Unusual occurrence of endometrial sarcomas in hybrid mice.
mesh_terms: D000818:Animals; D005260:Female; D006801:Humans; D007890:Leiomyosarcoma / Q000235:genetics* / Q000473:pathology; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D008854:Microscopy, Electron; D009368:Neoplasm Transplantation; D011374:Progesterone / Q000494:pharmacology; D012509:Sarcoma / Q000473:pathology; D012513:Sarcoma, Experimental / Q000235:genetics*; D012737:Sex Factors; D014184:Transplantation, Homologous; D014594:Uterine Neoplasms / Q000235:genetics* / Q000473:pathology
chemical_list: D011374:Progesterone