JAMA Internal Medicine News

Laws legalizing recreational marijuana may lead to more traffic deaths, two new studies suggest, although questions remain about how they might influence driving habits. Previous research has had mixed results and the new studies, published Monday in JAMA Internal Medicine, …

Patients with common conditions such as back pain, headaches and upper respiratory infections are more likely to receive tests and services of uncertain or little diagnostic or therapeutic benefit— so-called low-value care —when they seek treatment in primary care clinics …