"This inherent conflict," the spokeswoman said, "unfortunately prevents Martha from appearing tomorrow."

For others buyers, such as a couple Ms. Goldberg worked with, internal conflicts prevent any sale.

Severe conflict prevents the affected systems from being able to control, effectively destroying their function for the organism.

But conflicts among Palestinians have prevented a regular session recently.

Regional integration has been proposed in the past, but guerrilla wars and internal conflicts have prevented implementation of any plan.

As of 1987, conflicts in the region prevented further exploration.

However, the increasing conflicts with the church and his own death prevented this idea.

The conflict between the international political goals of the major powers and their views on economic welfare prevented from any concerted solution.

But renewed conflict would prevent investment and economic recovery.

The status of this is uncertain, as conflict has prevent surveys in its range, but it may be extinct.