| http://www.w3.org/ns/prov#value | - Yet the underlying reasons remain mysterious, and there are no safe and effective treatments.Fortunately, the crying -- which can last for hours every day -- usually disappears when the baby is a few months old, and the condition is harmless, experts say.In the meantime, distressed parents might be scouring the Internet for help.The new report, published in the journal Pediatrics, summarizes all t
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