TY - RPRT TI - Murine leukemia viruses: antigenic studies by quantitative complement fixation. AU - P Gerber AU - T E O'Connor AU - S M Birch PY - 1966 DO - 10.1126/science.152.3725.1074 UR - https://pubmed.ncbi.nlm.nih.gov/4286616/ ID - 4286616 ER -