All Contents Copyright 1997–2019 American Speech-Language-Hearing Association (ASHA). All Rights Reserved.
The contents of all material available on this website are copyrighted by ASHA unless otherwise indicated. Copyright is not claimed as to any part of an original work prepared by a U.S. or state government officer or employee as part of that person's official duties. All rights are reserved by ASHA, and content may not be reproduced, downloaded, disseminated, published, or transferred in any form or by any means, except with the prior written permission of ASHA, or as indicated below. Members of ASHA may download or print webpages for personal or academic use, consistent with the mission and purpose of ASHA (as codified in its governing documents). However, no part of such content may be otherwise or subsequently reproduced, downloaded, disseminated, published, or transferred, in any form or by any means, except with the prior written permission of and with express attribution to ASHA. Copyright infringement is a violation of federal law subject to criminal and civil penalties. ASHA and AMERICAN SPEECH-LANGUAGE-HEARING ASSOCIATION are registered service marks of the American Speech-Language-Hearing Association.
Requests for permission to reuse ASHA website and ASHA Leader Online content are handled through the Copyright Clearance Center.
Translation requests and questions, should be submitted to firstname.lastname@example.org.
The ASHA logo is a registered trademark of the American Speech-Language-Hearing Association. Members and the general public may use this logo only in approved ways. For further information, please contact email@example.com.