Source:http://linkedlifedata.com/resource/umls/id/C0018611
MSH: A replication-defective mouse sarcoma virus (SARCOMA VIRUSES, MURINE) first described by J.J. Harvey in 1964.,NCI: A replication-defective mouse sarcoma virus first described by J.J. Harvey in 1964. The ras gene was first identified in this virus.