Use an effective form of birth control, whether you are a man or a woman.

Talk with your doctor about effective forms of birth control.

Also, women should use an effective form of birth control while taking this medication.

Use an effective form of birth control, and tell your doctor if you become pregnant during treatment.

Use an effective form of birth control while you are using this medication.

Searching by author can be an effective form of information gathering.

The sermons were the most effective form of political education.

This is a very cheap and effective form of advertising.

Trying to get past them is an effective form of suicide.

We have to remember that prevention is the most effective form of health care.