Early Emergence and Development of Protophones in the First Year of Life

Abstract

1 This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright © 2021 Korean Academy of Speech-Language Pathology and Audiology Early Emergence and Development of Protophones in the First Year of Life