They generally present with seizures, but only half to three quarters of cases have identifiable causes.

In still other cases, there may be no identifiable physical or emotional cause of arrhythmia.

In September, 2010, the state ended its investigation, finding no identifiable cause for the cancer cluster.

Events that have no identifiable cause happen by chance and reside outside the boundaries of natural philosophy.

In fact, a vast majority of patients have a specific, identifiable cause for their dizziness, he said.

An identifiable cause is discovered in only one third of cases.

About 50% of cases where there is a burning sensation in the mouth have no identifiable cause.

It is usually found in early onset cases, before the ages of 35 to 45, when there are no other identifiable causes.

Elevated blood pressure develops gradually over many years usually without a specific identifiable cause.

However, not all cases of adrenergic storm have an identifiable cause.