a comparative study of the structural polypeptides of purified human papilloma virus , rabbit papilloma virus , and simian virus 40 ( sv40 ) was performed by electrophoretic analysis on 10 % polyacrylamide gels containing sodium dodecyl sulfate either by coomassie blue staining or by electrophoresing purified virus preparations labeled with radioactive iodine .
C0021344
human papilloma
C0042776
virus