TY - RPRT TI - Antigenic analysis of major structural proteins of avian leukoviruses. AU - P Gupta AU - J C Johnson AU - J T August PY - 1975 DO - 10.1016/0003-9861(75)90298-2 UR - https://pubmed.ncbi.nlm.nih.gov/49175/ ID - 49175 ER -