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This week in PNAS, Harvard systems biologists used fine-needle aspirates to detect and profile cancer cells. The diagnostic magnetic resonance sensor, which combines a miniature NMR probe with targeted magnetic nanoparticles, "measures the transverse relaxation rate of water molecules in biological samples in which target cells of interest are labeled with magnetic nanoparticles," they say in the abstract.

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AstraZeneca has released its coronavirus vaccine trial protocol, according to the New York Times.

Time magazine looks into how liquid biopsies are changing cancer care.

According to the Guardian, more than 150 countries have signed on to a global SARS-CoV-2 vaccine plan.

In PNAS this week: similar muscle protein patterns across hypertrophic cardiomyopathy phenotypes, analysis of gene expression and brain anatomy in major depression, and more.