What does Professor Andrew Christler specialize in?
Professor Andrew Christler specializes in laryngology, focusing on diagnosing common causes of voice loss.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What does Professor Andrew Christler specialize in?

### Input: Not applicable

### Response:
Professor Andrew Christler specializes in laryngology, focusing on diagnosing common causes of voice loss.<|im_end|>