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ccfDNA often comprises just ~5 ng/ml or ~700 diploid genome equivalents in plasma. In cancer patients, some of this ccfDNAcan be circulating tumor-derived DNA (ctDNA), which can be informative about the mutations and other genomic alterations in the tumor.

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The New York Times and ProPublica look into the close relationship between a startup and Memorial Sloan Kettering Cancer Center.

Yahoo News reports millions of dollars are being transferred from NIH, CDC, and other programs to pay for the housing of detained undocumented immigrant children.

Researchers gave a handful of octopuses MDMA to find that they too act more social on the drug, Gizmodo reports.

In Science this week: in vitro generation of human reproductive cells, and more.