Hi!! First time, I contact to this web. Actually, is it possible for me to register this web site? As a matter of fact, I'm a korean. Wonkwang univ. senior. I'm really interested in pedineurology. A few days ago, I had a question. Trying to study or major at pedi-neurology, Which subject(major as resident) do I have to first? I wonder about vitamin A action mechanism. I wanna know how vitamin A increase intracranial pressure.