What certifications does Troy Clifford Dargin hold in his field?
Troy Clifford Dargin is certified in the Arthur Lessac Voice/Body technique and holds a certificate in Vocology from the National Center for Voice and Speech.
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### Instruction:
What certifications does Troy Clifford Dargin hold in his field?

### Input: Not applicable

### Response:
Troy Clifford Dargin is certified in the Arthur Lessac Voice/Body technique and holds a certificate in Vocology from the National Center for Voice and Speech.<|im_end|>