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On 13 January 2020 took place the lecture of the doctoral thesis of Ronan Miller, titled «Anxiety and self-related constructs in learners who stutter in the learning of English as a foreign language».
The court was formed by the doctors Sara Mercer, Fernando Rubio and Tracey Costley. The thesis was directed by the doctor María Dolores García-Pastor and obtained the mark of Excellent Cum Laude.