معنى متخصص

Before the C.T. scan was introduced, he specialized in transcranial ultrasound.

Maybe you're just not getting enough sleep? Pick your specialist, you pick your disease.

Okay, do what the guy who didn't specialize in neurology said.

If it was any other attending doctor, I'd say that he made a mistake.

No. You did exactly what his attending did.

Catholic Church specializes in that kind of training