معنى البيئات

No. He's only 30 years old, and his job doesn't expose him to heavy metals or environmental

If it's environmental, he'll get better just from staying here.

So, differential diagnosis, people. Well, it's not environmental.

I just need something at least close to a sterile environment.

Pretty small environment. Wife's fine, no one else is sick.

designed to survive in a hostile environment.