But the idea did not become popular until years later.

VOA: special.2009.12.29

However,that fact was not recognized until later.

VOA: special.2009.06.14

But the procedure was not regularly available until ten years later.

VOA: standard.2010.05.30

As the cost of the needed genetic tests continues to decline, he predicts doctors will be able to screen patients for diseases they may not develop until later in life, and recommend ways to avoid them.

VOA: standard.2010.07.14

Obama administration officials have been quoted as saying they anticipate negotiations on a final bill would not be complete until after the president's State of the Union Address in January, and could slip even later into the new year.

VOA: standard.2009.12.25