Two external factors suggest possible reasons for the increase in numbers.

This is based upon the previous step in the process, where external factors have been taken into account.

Many don't want to attribute their success to any external factors.

But evidence suggests that it takes an external factor to set off the disease.

External factors, like parental influence, often get in the way.

If any external factor seemed to help, it was whether they went to an integrated school.

External environmental factors are, to a large extent, outside the control of the enterprise.

What external factors may affect the business' ability to compete?

Other factors, both internal and external, can also prompt change.

He also gave the internal and external factors that helped him create the album.

The training should be done by the system supplier, with no reliance on outside agents.

If there is an outside agent responsible, I will do everything in my power to bring that party to justice.

This, too, suggests an immune pathology rather than direct interference by outside agents.

Environmentally, by some outside agent acting as a trigger to development.

Which is why I believe there was an outside agent.

Once a player has been sent off he becomes an "outside agent".

These outside agents help create a constituency in their respective organizations for adopting the technology.

It was so completely out of character, there had to be an outside agent at work.

That hurt, because it was an outside agent, and a surprise.

It is possible, however, to force the director to point in a specific direction by introducing an outside agent to the system.