It proliferates in winter, but stubborn cases can persist all year round, especially if your water quality isn't 100 per cent.

Nail polish remover may be used for stubborn cases.

For more stubborn cases, an oral antibiotic may be prescribed.

But a variety of new approaches show promise in controlling stubborn cases of skin cancer and even preventing the disease.

For stubborn cases you'll have to remove the stop molding around the window frame.

He's a regular stubborn case just like his dad, isn't he, Fred?

In more stubborn cases, you can wipe down with a solvent such as dry-cleaning fluid or paint thinner.

Jim soon faces up to the fact that Frankie has a stubborn case of the Protestant work ethic.

The barrage was expensive of resources, and could quickly empty an escort's magazine, so it could only be used on stubborn cases.