What is Dr. Marissa Barreras area of expertise?
Dr. Barreras area of expertise is Multiple Sclerosis, dysphagia, motor speech disorders, cognition, and neurogenerative diseases.
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### Instruction:
What is Dr. Marissa Barreras area of expertise?

### Input: Not applicable

### Response:
Dr. Barreras area of expertise is Multiple Sclerosis, dysphagia, motor speech disorders, cognition, and neurogenerative diseases.<|im_end|>