Concerns rise over tainted sewage sludge spread on croplands

Tentative opioid deal won't end court battles for Purdue

A gene-editing first: scientists tried CRISPR to fight HIV

Government plans to ban flavors used in e-cigarettes

Vaping group plotted lobbying efforts at Trump's DC hotel

VA may have to pay billions in vets' emergency care bills

Dutch court clears doctor in landmark euthanasia trial

Wisconsin man accused in illegal THC vaping cartridge scheme

Draft Pelosi plan would overhaul how Medicare pays for drugs