By a GenomeWeb staff reporter

NEW YORK (GenomeWeb News) – Problems with a reagent may have affected results from about 100 cancer diagnostics tests, Rosetta Genomics reported on Tuesday after the close of the market.

The affected test is the firm's miRview mets — a molecular test for cancer of unknown primary patients that identifies the tissue of origin of metastatic tumors.

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In PNAS this week: ancestry and admixture in Brazilians, characterization of novel double-stranded RNA mycovirus, and more.

Researchers report that what scents someone picks up can reflect their complement of immune genes.

The New York Times examines ethics and China's push to lead biomedical research.

At her blog, Sally Rockey dives into National Institutes of Health funding data.