1.   Generally, this condition persists for only a short period as the enzyme system usually becomes functional within several days after birth.

2.   If your symptoms persist for more than a few days, then contact your doctor for advice.

3.   In most cases, these symptoms persist for a couple of days.

4.   It can persist for many years.

5.   The state had persisted for over three days now.

6.   Thus the disintegration of the radioactive elements is a heat source that has persisted for billions of years.

7.   These problems persisted for much of the decade.

8.   Modigliani and Miller argue that this situation cannot persist for long as it offers arbitrage profits to the individual investor.