The periods can range from a few hours to several weeks.

Treatment had been given for periods ranging from two weeks to over 10 years.

She was to report when available, for periods ranging from all day to one hour.

Students stay for periods ranging from three months to a year.

Then the forms are allowed to rest in a dry environment for a period ranging from 20 to 40 days.

Each research project is usually presented on a conference schedule for a period ranging from 10 minutes to several hours.

The period of time for the discussion with the inmate ranged from five to 15 minutes.

Although the period of major guerrilla activity ranged from 1938 through to the early 1950s, some groups continued to fight.

This shift can be traced to have happened during the period ranging from 1950s to 1980s.

Six workers were suspended for periods ranging from three to 30 working days.