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Stemcells coaxed to rebuild bone, cartilage
Scientists have shown for the first time that it may be possible to replace a human hip or knee with a joint grown naturally inside the body using the patient's stem cells.

Healthy Baby: Protecting Babies and Toddlers From Germs at Home
It’s a germy world. To keep your baby healthy, it pays to know how tackle germs -- and to know when you don’t have to.