This step is considered pivotal in the history of interventional radiology.

The improvement is particularly strong in downtown White Plains, which is considered pivotal to the county's overall economic health.

The Heldrich Plaza site is considered pivotal to the downtown's 25-year-old revival.

Despite the relatively small numbers of troops involved, the battle is considered pivotal to the American victory in the Revolution.

Several races are considered pivotal in terms of which party wins a majority of the seats.

They are considered pivotal in the development of progressive rock in south of Brazil.

Today, that research is considered pivotal in the study of evolution at the molecular level.

This year is considered pivotal in efforts to achieve the poverty reduction goals set by world leaders in 2000.

The seat is considered pivotal in the closely fought struggle over the housing issue.