TY - RPRT TI - [Comparative serologic studies on leukemia viruses. Complement fixation reaction for the determination of common antigen components occurring in leukemia viruses of various mammals]. AU - W Schäfer AU - J Lange AU - L Pister AU - E Seifert AU - F De Noronha AU - F W Schmidt PY - 1970 UR - https://pubmed.ncbi.nlm.nih.gov/4394578/ ID - 4394578 ER -