<http://schema.org/alternativeHeadline>
"New study finds that smoking in the car \u2014 even with the windows open \u2014 creates pollution that exceeds official 'safe' limits."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/family/protection-safety/blogs/smoking-in-the-car-exceeds-toxic-limits>