Migratory flyway and geographical distance are barriers to the gene flow of influenza virus among North American birds von Lam, Tommy Tsan-Yuk, Ip, Hon S., Ghedin, Elodie, Wentworth, David E., Halpin, Rebecca A., Stockwell, Timothy B., Spiro, David J., Dusek, Robert J., Bortner, James B., Hoskins, Jenny, Bales, Bradley D., Yparraguirre, Dan R., Holmes, Edward C.

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A Selective Requirement for Elevated Calcium in DNA Degradation, but Not Early Events in Anti-Fas-induced Apoptosis von Scoltock, Alyson B., Bortner, Carl D., St. J. Bird, Gary, Putney, James W., Cidlowski, John A.

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Age-dependent skin tumorigenesis and transgene expression in the Tg.AC (v-Ha-ras) transgenic mouse von Battalora, Michael StJ, Spalding, Judson W., Szczesniak, Carl J., Cape, James E., Morris, Rebecca J., Trempus, Carol S., Bortner, Carl D., Lee, Byung M., Tennant, Raymond W.

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Population Trends from the American Woodcock Singing-Ground Survey, 1970-88 von Sauer, John R., Bortner, James Bradley

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