The entire procedure usually takes about 30 minutes but may take longer.

This entire procedure takes at least five to seven hours.

The procedure takes less than an hour and patients can go home the same day.

The procedure takes about 45 minutes, and men can go home the same day.

The procedure usually takes an hour or two, but may take longer.

The procedure took between two and six hours, less in the later cases.

The procedure takes time, but I don't see anything else to do.

The procedure generally takes from 45 minutes to 1 hour.

The whole procedure had taken less than five minutes, and the public wouldn't be happy.

The entire procedure had taken less than half an hour.