Courses run four days to almost four months, with a seven-day course costing about $1,100.

A seven-day course of your sugar pills is bound to cure a cold.

"There might be a three-day course or a seven-day course that is equally effective as a longer one."

- The seven-day course, with tuition, accommodation and meals but not flights, costs £645pp.

No matter what I do it seems determined, like the common cold, to run its seven-day course.

You might need a seven-day course of treatment, rather than the short courses more usually prescribed.

As treatment, a seven-day course would cost about $6 to $37, but at best the drugs shorten the illness by only one or two days.

My seven-day course of amoxicillin cost $3.50.

Half were treated with a seven-day course of Augmentin, a powerful antibiotic.

She took a full seven-day course, but the medicine didn't help.