If this piques your interest, you can also visit Vision Science , an online resource on human and animal vision. Read this Web book called The Joy of Visual Perception or check out The Human Eye in Anatomical Transparencies , an amazing, full-color tour of your eye. This HealthScout story describes patients with brain tumors that produce the uncontrollable urge to laugh. Get Your Medifocus Medguide Research Your Illness Visit our Medcenter and get your Medifocus Guide , trustworthy medical information specifically about your health condition. Bookstore Visit our Parkinson's Disease Bookstore and find books on the latest treatments and remedies for your illness.
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