TY - RPRT TI - An antigenic difference between intracellular and extracellular rabbitpox virus. AU - G Appleyard AU - A J Hapel AU - E A Boulter PY - 1971 DO - 10.1099/0022-1317-13-1-9 UR - https://pubmed.ncbi.nlm.nih.gov/4108676/ ID - 4108676 ER -