Then the researchers wondered whether grapefruit juice had somehow interfered with their laboratory testing system.

But now researchers are wondering whether eliminating platelet stickiness is really the final answer in the aspirin story.

But even as prices fall, many researchers wonder whether people want a single machine to handle their television, music and photos.

Other researchers wonder what - whether environmental factors or just plain luck - may explain a good part of the supertrees' success.

Such problems sometimes leave the researchers wondering whether their efforts do any good.

In fact, researchers are still wondering what its role might be.

Why, researchers have long wondered, do these leaves not maintain their chemical defenses?

Based on the experience with doctors so far, though, many researchers wonder whether even the best nicotine replacement will be administered properly.

But researchers are also wondering whether the neck stenting procedure is technically less challenging in most cases than had been assumed.

As they revise their psychiatric diagnostic manual, researchers are wondering why so many women feel little sexual desire and what should be done for them.