The most usual form involves skeletal muscles, especially in the back.

Some forms of the disease involve just the lung or the kidney, but not both.

This form of growth does not involve an increase in cell number.

Another form involves a single representative from each of several teams.

The most common form of the ceremony involves turning on Christmas lights.

One form involves each individual taking turns to be coach in half hour sessions.

One form involves the race vehicles on a outdoor dirt road course.

The present form of the boat race involves less ritual activities than the pre-1940s races.

Every form of friendship, then, involves association, as has been said.

A common form involves hearing one or more talking voices.