TY - RPRT TI - Endogenous ecotropic mouse type C viruses deficient in replication and production of XC plaques. AU - U R Rapp AU - R C Nowinski PY - 1976 DO - 10.1128/jvi.18.2.411-417.1976 UR - https://pubmed.ncbi.nlm.nih.gov/58071/ ID - 58071 ER -