Tell your doctor if you have persistent difficulty sleeping.

In addition to social discrimination, many Dalits also face persistent economic difficulties.

Such interference comes at a time of persistent difficulties in the coal industry, he said.

Such exports would be important in case of persistent economic difficulties in Russia.

We tried to arrange this, but it was beset with persistent and irreconcilable difficulties.

However, the ship was unable to consistently meet its sailing schedule during the semester due to persistent mechanical difficulties.

That the council feels the need to run such workshops says something about a persistent difficulty facing Democrats as they head into the next elections.

The most persistent difficulty occurred whenever her mother fed the baby.

A few othersface persistent difficulties and receive ongoing help, say officials at the agencies the fund supports.

The campus was closed at the end of its 2001-2002 school year, as a result of continued enrollment declines and persistent financial difficulties.