<qa>  What is the name of the study physician?The research staff will then determine whether the subject continues to qualify for the research trial. They will ask the subject about any changes in their medications since their last visit andor any changes in their medical conditions since their last visit. Vital signs will be measured and if the subject is a woman of childbearing potential a urine sample will be obtained for routine pregnancy testing. A brief physical examination and neurologic examination will be performed by the study physician. The subject will be given a diary to take home with instructions on how to complete it. The subject will be scheduled to return to the study office the next day. 