<http://schema.org/alternativeHeadline>
"The size of mom's hips has long been assumed to be the reason babies are born with underdeveloped brains, but new research suggests that's not the case."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/family/babies-pregnancy/stories/why-pregnancy-lasts-9-months>