title: Methodological problems in evaluating lip/jaw reciprocity as an index of motor equivalence.
mesh_terms: D006801:Humans; D007568:Jaw / Q000502:physiology*; D008046:Lip / Q000502:physiology*; D009068:Movement; D012107:Research Design; D013060:Speech / Q000502:physiology*; D013223:Statistics as Topic