Where has Marissa A. Barrera held appointments and positions in her career?
Marissa A. Barrera has held appointments at esteemed
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Where has Marissa A. Barrera held appointments and positions in her career?

### Input: Not applicable

### Response:
Marissa A. Barrera has held appointments at esteemed<|im_end|>