El Salvador President Nayib Bukele told reporters he would not return a man the Justice Department said it mistakenly deported to his country.

Allergy medications not doing the job this season? Experts explain why allergy immunotherapy may be the newest answer to ...

An analysis of exhaled breath, using an electronic nose, demonstrates potential for accurately detecting lung cancer in ...

You never think you need a leg up on spring until the pollen arrives (hello, hay fever), but the best humidifiers offer ...

Electronic "nose" analysis of exhaled breath achieved 80-90% accuracy for detecting lung cancer in patients with suspicious ...