Comparison of neck tension palpation rating systems with surface electromyographic and acoustic measures in vocal hyperfunction.
Stepp CE, Heaton JT, Braden MN, Jett? ME, Stadelman-Cohen TK, Hillman RE. Comparison of neck tension palpation rating systems with surface electromyographic and acoustic measures in vocal hyperfunction. J Voice. 2011 Jan; 25(1):67-75.