Objective To assess whether post-authorisation studies registered with the European Medicines Agency (EMA) adhere to legislation and recommendations to publicly post study protocols and results.

A Guardian investigation into the U.S. overdose slowdown found that national declines masked sharp local disparities. Here's how the reporting team got the story.

The discovery of so many animals feeding on the bats may be a ‘Rosetta Stone’ for understanding how diseases spread between animals ...