It is unclear whether invasive risk stratification (with programmed electrical stimulation) is necessary in the asymptomatic individual.

WPW is commonly diagnosed on the basis of the electrocardiogram in an asymptomatic individual.

These imaging features are exaggerated on expiration, even in normal asymptomatic individuals without the syndrome.

But, he added, "when we saw this information, we realized these were new findings, in asymptomatic individuals."

These white matter lesions are also seen in asymptomatic individuals with the mutated gene.

Diagnostic measures through antibody testing are also particularly useful for identifying serum prevalence in asymptomatic individuals.

Exercise and allergies can bring on the symptoms in an otherwise asymptomatic individual.

The frequency of protein C deficiency among asymptomatic individuals is between 1 in 200 and 1 in 500.

In humans, infection is symptomatic only about 50% of the time, and protocol for treating asymptomatic individuals is controversial.

"The possibility of secondary narcolepsy following head injury in previously asymptomatic individuals has also been reported."