1.   But the proportion of positive tests was up ... to five point four percent from four percent.

2.   I could knock up some lightweight special frames and do a positive test on their value.

3.   In an attempt to reduce administration costs, in future we will only notify your drug control officials of positive test results.

4.   Patients with a normal exercise test often do well while those who have a dramatically positive test do not.

5.   Positive test results are double-checked to make absolutely sure.

6.   Positive tests have revealed why some athletes were so reluctant to co-operate.

7.   Subjects - Those families whose son had a positive screening test.

8.   Three independent sources confirmed he gave the positive test, it added.

9.   Two positive tests could result in a suspension.