There may be a number of side effects following the surgery.

Birth control can have a number of side effects, both good and bad.

A number of different effects are used to reduce reflection.

Human activities have had a number of effects on the climate system.

And it can have a number of effects on the Northeast.

The film is a typical disaster movie and as such it had a large number of special effects.

Refers to a number of different special effects involving water.

A number of effects can be used to create different or interesting sounds.

It has a number of physiological effects and is used in medical research.

There would be a number of adverse effects if we did so.