There are roughly 225,000 new cases of lung cancer every year in the United States. Early diagnosis and treatment play a large role in improving outcomes. A recently developed nasal swab test could ...

Some testers gently swab the front of your nostril and send you on your way. Others dig deep, bringing the pain. What’s the gold standard? By Livia Albeck-Ripka and John Yoon One Canadian said it felt ...