Scientists need to do more research on this before they can say for sure.

He wants a change - scientists need to get their act together.

But first, scientists need to build a machine to run the program.

And at the same time, the scientists need to be encouraged to keep going.

Of course, a scientist needs to know how to write so that he/she can record information and share ideas with other scientists.

The scientists will then need to determine whether the virus is actually the cause of a disease.

Scientists still need to learn a lot more about what causes Alzheimer's disease.

But if there is no water, scientists will need to repeat measurements for months to be sure.

To solve this, I've long felt that scientists needed to come up with a new way of thinking about the self.

The scientists need to develop a blood test to help diagnose the disease.