All content in Consultant (ISSN 0010-7069) and Consultant For Pediatricians (ISSN 1545-8539) is copyrighted and may not be reproduced in any form without written permission. Permission to reuse materials in our publications can be requested through the Copyright Clearance Center at When requesting permission, you will need the ISSN numbers listed above.

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Please note, while the articles and other content in HMP publications are openly and freely available online, they are protected by US Copyright Law and the Digital Millennium Copyright Act and permission must be secured before any material is used for any purpose other than that allowed by the fair use doctrine. For good information about fair use, please consider visiting the Stanford University web site on copyright ( HMP content is available only through the agents noted in this document and may not be resold.