DO AEROBIC INSTRUCTORS EXPERIENCE VOICE PROBLEMS? 1208
Autor: | Williford, H. N., Olson, M. Scharff, Long, J. A., Wolfe, V. I. |
---|---|
Zdroj: | Medicine & Science in Sports & Exercise; May 1997, Vol. 29 Issue: Supplement 5 p212-212, 1p |
Databáze: | Supplemental Index |
Externí odkaz: |