No Evidence of Infectious Retroviruses in Measles Virus Vaccines Produced in Chicken Embryo Cell Cultures von SHAHABUDDIN, Muhammad, SEARS, Johnna F, KHAN, Arifa S

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Single-tube fluorescent product-enhanced reverse transcriptase assay with Ampliwax™ (STF-PERT) for retrovirus quantitation von Sears, Johnna F, Khan, Arifa S

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Sensitive Assays for Isolation and Detection of Simian Foamy Retroviruses von KHAN, A. S, SEARS, J. F, MULLER, J, GALVIN, T. A, SHAHABUDDIN, M

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Improved Mg2+-Based Reverse Transcriptase Assay for Detection of Primate Retroviruses von SEARS, J. F, REPASKE, R, KHAN, A. S

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The reverse transcriptase activity in cell-free medium of chicken embryo fibroblast cultures is not associated with a replication-competent retrovirus von Khan, Arifa S, Maudru, Tom, Thompson, Ariane, Muller, Jacqueline, Sears, Johnna F, Peden, Keith W.C

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Improved Mg 2+ -Based Reverse Transcriptase Assay for Detection of Primate Retroviruses von Sears, Johnna F., Repaske, Roy, Khan, Arifa S.

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Preparation of Infectious Cell-Free Herpes-Type Virus Associated with Marek's Disease von Cook, M K, Sears, J F

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Genetic Mapping of the Mouse Proto-Oncogene c-sis to Chromosome 15 von Kozak, Christine A., Sears, Johnna F., Hoggan, M. David

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