Either condition might lead to the other, the study said.

"But we don't know if those conditions necessarily lead to life."

These conditions led to the first labor combination cases in America.

Such condition may lead to chest pain or heart attack.

However, if treatment is not administered, the condition can lead to death.

The condition can lead to fatigue, high blood pressure and other health problems.

The condition could lead to severe back problems, doctors say.

We are here because the right conditions on earth led to our evolution of millions years.

The same condition led to his premature death on 17 May 1967.

The bad agricultural conditions led to the fact that trade played a central role as a life basis of the town.