Over 1,700 courses are on offer in a range of different subjects and levels, varying from the performing arts to engineering.

The best course of treatment varies from case to case.

The course of the disease varies greatly from one person to another.

The courses vary a lot depending on countries, branches, positions and others.

Why the course of the disease varies so widely remains unclear.

The course of treatment varies, though polyps sometimes require surgery if rest doesn't work.

Since 2006, the women's course has varied around the 7.5 km mark.

The other courses have varied sponsors and some are taught by commercial driving schools.

The courses vary from 9 hours to 13 weeks and cost about $35 to $45 an hour.

These other courses varied between three and five miles approximately.