Rats, Inbred ACIRats, Inbred BUFEstrogens, CatecholActinobacteriaMammary Neoplasms, ExperimentalRats, Inbred WFChondrocytesAnimals, CongenicOsteochondritisCartilage, ArticularTransplantation, AutologousOsteochondritis DissecansTalusStifleButylated HydroxyanisoleEstradiolRats, Inbred LewEstrogensTechnology, PharmaceuticalKnee JointRats, Inbred StrainsCocarcinogenesisMetered Dose InhalersArthroscopyKnee InjuriesRats, Inbred BNAortic DiseasesMammary Glands, AnimalSpecies Specificity