The most common complications include lead migration, lead breakage, and infection.

This model was expanded to many-country and many-commodity cases and also to include migration of people between countries.

These factors include habitat preference, migration, climate change, and public support.

Means of digital preservation include refreshing, migration, replication and emulation.

Key areas of focus include migration, ageing, climate change and urbanization.

We maintain that this balance not only includes migration but includes other adjustments.

Besides selection, these forces include genetic drift, mutation and migration.

Reasons for this included migration to western cities as well as suburbanisation.

These activities include "collection, description, migration, and redundant storage."

The areas concerned, of which there are indeed many, include terrorism, migration, growth, development, trade, the environment and energy.