It would have been years before we conducted trials involving humans.

The primary analysis included only studies that involved humans and were published in English.

This is a contrast from the previous series which involved ponies and humans.

However, since the incident involved humans, this was only to be expected.

Some racing events directly involve humans as riders while others see the animals race alone.

Most of the center's 2,000 experiments involving humans is federally financed.

Universal restrictions and documents have been made by international organizations to set a general standard on the issue of involving humans directly in research.

There has apparently been some disturbance here involving humans, in the recent past.

Of the 18 primary experiments on the mission, 10 will involve humans.

This bill did not pass, but in 2004, a new act on ethical review of research involving humans was introduced.