What is Dr. Andrew Christler's expertise?
Dr. Andrew Christler is an expert in combining laryngology and business economics to develop global tele-rehabilitation programs.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is Dr. Andrew Christler's expertise?

### Input: Not applicable

### Response:
Dr. Andrew Christler is an expert in combining laryngology and business economics to develop global tele-rehabilitation programs.<|im_end|>