A single trial of vitamin D did not find benefit.

There is more at stake than this single trial.

A single trial for all the defendants is now scheduled for September.

First, he presented individual bees with a sugar reward on a colored background for just a single trial.

However, these agents have not been directly compared against one another in a single trial.

Thus, even without a single military trial, the order is already undermining our ability to bring terrorists to justice.

He did not want too many death sentences at a single trial, and had scheduled those four for the next day.

What you should know about screening A single trial is usually not enough to provide definite answers.

A single trial was enough to establish an association between light and shock that was detected up to 3 hours later.

This case is the single most important criminal trial in America today.