1.   And he had no measurable trace of the virus in his blood.

2.   Within weeks, Ian was brought into remission, all measurable traces of the disease eradicated.

3.   The combinations can eliminate all measurable traces of HIV in the blood even when given to people who have been infected for several years.

4.   The combinations can eliminate all measurable traces of HIV in the blood, even when given to people who have been infected for several years.

5.   The DEA rule, published in October and due to take effect in February, would ban any product with any measurable traces of THC, or tetrahydrocannabinols.