The show's title has often been the source of confusion.

Yet to her, this mysterious quality was a source of confusion.

The decision to put off these issues is becoming a source of tension and confusion in the Bush administration.

This source of confusion may still be found in some literature.

The film's ending has been a source of confusion for fans.

Washington appears to be the principal source of confusion in the markets.

This species has been the source of much confusion since its discovery.

It has been a source of confusion in the negotiations.

However, some make a distinction, so the terms can be a source of confusion.

Guidelines should not, after all, be a source of confusion.