Toys and other children's products that are recalled still pose a threat, according to a new study.

University of Dayton professor Keri Brown Kirschman said the auction site eBay prohibits the sale of recalled products, but enforcement efforts don't seem to be succeeding.

Items are often resold online.

Kirschman searched for 141 recalled items on eBay for 30 consecutive days and found them offered in at least 144 online auctions. The products included play yards, baby walkers, bassinets and safety devices.

She said that about 70 percent of recalled items tracked were sold.

Most of the recalled items were listed for sale from addresses within the United States, with sellers from Canada, Australia, Great Britain, and Ireland also represented.

The study, which appears in the journal Injury Prevention, recommends that parents check government recall sites before purchasing items on auction Web sites.