"Ten or 20 years ago, it's hard to imagine the movement could have persisted in China after 18 months of a government campaign," he said.

They left behind a scrap of message, to persist after them.

The study found that the trouble persisted in 17 percent of the patients a year after surgery.

The hospital paper work may persist months after the patient's discharge.

These symptoms may persist for hours or months after birth.

But the researchers say early studies show that the pattern persists after 30 months.

Many expected the trend to persist until after the November election, at least.

In most cases persisting after childhood, there is little or no effect on the ability to walk.

The music persisted until three days after cessation of the drug.

The influence of such views persisted long after the Stalin's death.