Two new medications for treating a rare and deadly neuromuscular disease have high prices and questionable efficacies, say scientists.

In clinical studies worldwide, researchers are testing the possibility that supplements of the vitamin could prevent or decrease the severity of SARS-CoV-2 infections.

Scrutinizing a company’s study on a widely used pesticide, chlorpyrifos, academic researchers find shortcomings in analyses and public disclosures of results.

H. Gilbert Welch, a health policy expert who has advocated against superfluous cancer screening, published another Dartmouth researcher’s work, according to the university administration.