It is generally considered to be a particularly dangerous form of parachuting.

Many others called it a renewal of anti-Semitism in a particularly dangerous form.

This is a more dangerous form of angina and you need to be seen in an emergency room right away.

They are the most dangerous form of transportation ever invented.

That it could only have assumed a hidden, more dangerous form.

Was quick action needed to stop the appearance of a potentially dangerous form?

The even more dangerous form was not reported until May 22.

But this time the religious extremists' anger took a more dangerous form.

Thus, being a war correspondent is often considered the most dangerous form of journalism.

The most dangerous form of skin cancer is melanoma (shown here).