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Randomized controlled study on the effectiveness of vocal hygiene lecture compared with hand-outs alone and no intervention in the prevention of voice disorders among local call center representatives / Vangie S. Sumulong ; Flordelina Pio-Gulapan ; Rebecca R. Feliciano.

By: Contributor(s): Language: English Publication details: Fairview, Quezon City Department of Otolaryngology, FEU-NRMF, 2007Description: 25 pages: (in folder)Content type:
  • text
Media type:
  • unmediated
Carrier type:
  • volume
LOC classification:
  • ENT20070004
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