TY - RPRT TI - RNase activity in human interferon preparations. AU - R A Winchurch AU - T P Karpetsky AU - C C Levy AU - K Cantell PY - 1977 DO - 10.1128/jvi.21.3.1247-1248.1977 UR - https://pubmed.ncbi.nlm.nih.gov/850310/ ID - 850310 ER -