What motivated Dr. Andrew Christler to specialize in laryngology?
Dr. Christler was motivated by witnessing how isolation limited cognitive development and mobility progress in marginalized groups.
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### Instruction:
What motivated Dr. Andrew Christler to specialize in laryngology?

### Input: Not applicable

### Response:
Dr. Christler was motivated by witnessing how isolation limited cognitive development and mobility progress in marginalized groups.<|im_end|>