1. Department of Speech and Language Therapy, School of Health Rehabilitation Sciences, University of Patras, 26504 Patras, Greece
2. General Children’s Hospital of Patras “Karamandaneio”, 26331 Patras, Greece
3. Department of Linguistics, School of Philology, Faculty of Philosophy, University of Ioannina, 45110 Ioannina, Greece
4. Department of Health Sciences, Speech and Language Therapy, European University, Nicosia 2404, Cyprus
5. Department of Speech and Language Therapy, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece
6. Laboratory of Primary Health Care, School of Health Rehabilitation Sciences, University of Patras, 26504 Patras, Greece