The free course of studies lasted three years, the students providing for their own support.

The course lasted four weeks and trained 10 to 12 officers each time.

The course, which is to begin in mid-September, will last six to eight weeks and run four hours a day.

The course lasts three years and is free of charge.

The course, for which students were to pay until 1858, lasted two years.

A successful course of treatment usually lasts several months to a year.

This course of treatment usually lasts between three and six months.

The course of study lasts anywhere from nine months to two years.

The first course in the scheme of higher education would last for ten years.

The courses of which she spoke had lasted for a little over a year.