The best of them have a serious case to make.

And we have a serious case to make to the world.

In serious cases you may be asked to pay up to 100% of the tax due instead.

But the more serious cases met with a different treatment.

I think this is a serious case of getting cold feet.

In more serious cases, you may need a doctor's care.

The minister did not say what those more serious cases were.

"You just have to move on to the serious cases and that's the way the world works," he said.

It was the third serious case of reported child abuse in a week.

These signs usually develop within 1-3 days in serious cases.