A government official said such a method offers little or no assurance that the information will be delivered to local authorities promptly.

The new methods offer at least the promise of making a real difference in breast cancer treatment and survival, experts said.

"Sometimes more traditional methods offer the desired results," she said.

This second method offers a powerful tool in geology and geography.

The method can offer better indications of a country's international purchasing power and relative economic strength.

Variations on these techniques exist, and new methods can offer added benefits.

This method is expensive but offers maximum protection against corrosion.

This method offers better performance at a cost of significant increase in complexity.

Nevertheless, alternative methods, such as adult stem cells, offer very promising results.

These methods offer unique insight into how the brain and its periphery are connected.