Where has Wenxiong Chen held positions throughout his career?
Wenxiong Chen has held positions at Missouri State University, University of California, Los Angeles, University of Arizona, and University of Pennsylvania.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Where has Wenxiong Chen held positions throughout his career?

### Input: Not applicable

### Response:
Wenxiong Chen has held positions at Missouri State University, University of California, Los Angeles, University of Arizona, and University of Pennsylvania.<|im_end|>