Risk: 5 percent of test subjects experience a fatal cardiac volume increase.

Usually the test subjects would simply be unable to distinguish similar-looking individuals.

He'd go through more test subjects, but it sure would be fun.

The test subjects in the containment unit were lost to them now.

He was one of the original Rhine test subjects, a high scorer.

Primate test subjects must be cleared through UNSC Quartermaster General Office code: OBF34.

That would give him time to deal directly with his lovely test subjects.

Willing test subjects are, as you can imagine, difficult to find.

He kept seeing the grisly photographs of Hildebrand's test subjects in his mind.

Cats, after all, tend not to be the easiest test subjects.

I found your satchel, and those photographs of Hildebrand's test subjects.

But unbeknownst to the test subjects, the head movements weren't random.

Data collection was carried out on five different test subjects for eight trials each.

Images seen by test subjects are in the left column.

Instead, they said, the scientist explained that the test subjects were large Polish men.

They were told about military research and signed their consent to be test subjects.