However, these efforts have been impeded by periodic terrorist attacks.

In 1596 the founding families of Monterrey finally held on, though periodic attacks continued into the 18th century.

During his year there, Van Gogh would have periodic attacks, possibly due to a form of epilepsy.

In "Wendigo Attack", players must move to safe zones or get items to protect their units from a periodic attack by demons.

She continued launching periodic attacks upon rogue centers where she had been unable to detect the presence of her comrades.

He used to get periodic attacks of eczema on the face and body, which confined him into complete seclusion for long periods.

After that, there are periodic attacks (relapses), followed by partial or complete recovery (remissions).

And now he suffered from periodic attacks of insanity.

The hospital has been under periodic attack for almost two weeks now.

"Well, a repeller screen would keep them from the periodic attacks of the avians," Jon said.