Source:http://linkedlifedata.com/resource/umls/id/C0950105
MSH: A genus of the family RETROVIRIDAE consisting of viruses with either type B or type D morphology. This includes a few exogenous, vertically transmitted and endogenous viruses of mice (type B) and some primate and sheep viruses (type D). MAMMARY TUMOR VIRUS, MOUSE is the type species.,CSP: genus of the family retroviridae consisting of viruses with either type B or type D morphology; includes a few exogenous, milk transmitted and endogenous viruses of mice; associated with mammary carcinoma and T- lymphoma.,NCI: A genus of single-stranded, reverse-transcribing RNA retroviruses with type B or type C morphology. It is the genus to which the mouse mammary tumor virus (MMTV) belongs.