There really is no proven case for raising margins.

Urban legend debunking site Snopes.com reports there are no proven cases of this happening in reality.

"There's no proven case on health effects, so that is not a factor directly relevant to the legal case."

Nobody else at the hospital developed a proven case of Marburg-virus disease.

In the last ten years, there have been 286 proven cases of people associated with the market who have been held against their will.

"I am not aware of any proven case where the fracking process itself has affected water, although there are investigations ongoing."

In part for that reason, actual, proven cases of abuse were rare.

This incident is the first proven case of air sabotage in the history of aviation.

This was the first proven case of air sabotage in commercial airline history.

There are still, however, many proven cases of individuals who have suffered psychological damage from their time in Vietnam.