@article{articleeb017d8a,
title   = {Comparison of upper and lower lip muscle activity between stutterers and fluent speakers},
author = {Felício, Cláudia Maria de and Freitas, Rosana Luiza R. Gomes and Vitti, Mathias and Regalo, Simone Cecílio Hallak},
year = {2007},
doi = {10.1016/j.ijporl.2007.04.008},
journal   = {International Journal of Pediatric Otorhinolaryngology}
}