Speculation persists about the purpose of the tower and it may have had several purposes.
The pain persists for years in about 10 percent of the people affected.
In any case, questions persist about the White House's knowledge and role.
His condition deteriorated throughout 1849, and doubts persisted in her mind about their union.
It is considered an important manuscript, but some doubts persist about its authenticity.
Still, questions persist about the alleged conspiracy to mask the shooting as a suicide.
Mixed signals persist about the overall health of the economy.
At the start of the day, questions persisted about what kind of football to expect.
The vision persisted for about half an hour and later was revealed to some of the sisters at the monastery.
Two legends persist about the origin of its name.