Sarah, the lone female, was a control subject, which meant she had been left intact.

That is not, however, of much consolation to the control subject who dies while the experimental group gets the real cure for cancer.

It's always helpful to have a genetically similar control subject.

And besides, she's quite useful as a control subject.

"Let's see if I have all the planetary control subjects."

As a non-esper, he was a good control subject for the work going on.

Over the five years, 379 vaccinees were compared against 414 unvaccinated control subjects.

Would I identify the drug words more quickly than a non-addict control subject?

In the 4-hour-long test, Demkina correctly matched conditions to four volunteers, including the control subject.

They tested 14 obese boys and girls, whose average age was 8, and 7 control subjects.