1.   The foul haze of pollution has meant an increase in asthma cases.

2.   The number of asthma cases is rising.

3.   Despite the seemingly endless rise in asthma cases, new treatments for the disease have been noticeably slow in coming.

4.   He said that only children with the most severe asthma cases need to receive high doses of the inhaled steroids that could conceivably affect growth.

5.   Number of asthma cases, office visits and children affected.

6.   Reactions to cockroaches have been implicated in the dramatic increase of asthma cases among inner-city children.

7.   The recent rise in the number of asthma cases is a mystery.

8.   To begin with, asthma cases are surging as pollution levels are declining.

9.   Greenpeace activist Karsten Smid said the group believed increasing ozone levels caused by auto exhaust are leading to more asthma cases and other illnesses.

10.   In the asthma study case, federal regulators found that researchers had bypassed several safety checkpoints.