We're told the particles may be harmful only to those with acute respiratory conditions.

Indeed, their respiratory condition is almost secondary to other concerns.

He died two days later from a cardiovascular respiratory condition, aged 76.

The leading causes of death were wasting and respiratory conditions.

The respiratory condition in this group of children improved with age.

The major causes of death are cardiovascular and respiratory conditions.

Other respiratory conditions that could explain the soldiers' breathing problems were found in the remaining 11 cases.

Many respiratory conditions have similar symptoms, making it difficult to reach a correct diagnosis.

Learn how respiratory conditions can be misdiagnosed by reading this article.

These effects are especially pronounced in people with respiratory conditions and children.