Neurologic illness represents a major portion of clinical medicine and challenges the diagnostic and therapeutic acumen of all physicians. It is the purpose of this series to familiarize our colleagues with common clinical disorders and to emphasize not only examination techniques but also to discuss therapeutic and investigative implications. Pitfalls will also be emphasized. In this way, we hope to create a practical set of volumes that will stimulate the reader to "use" these books routinely rather than to set them on the shelf as a reference text. In the past few years, there has been a...