Copyright Information

Last updated: February 2025

Unless otherwise indicated, NEJM Group content, including, without limitation, text, videos, photographs, logos, audio, images, applications, programs, and graphics, (“Content”) is protected by copyright and may be used only in accordance with copyright and other applicable laws. All copyright rights in the Content are owned by Massachusetts Medical Society or our licensors.

You may not scrape, copy, display, distribute, modify, publish, reproduce, store, transmit, post, translate, or create derivative works from, including with artificial intelligence tools, or in any way exploit any part of the Content except that you may make use of the Content for your own personal, noncommercial use, provided you keep intact all copyright and other proprietary rights notices.

YOU MAY NOT USE CONTENT TO TRAIN AI MODELS OR USE CONTENT FOR OTHER PURPOSES SUCH AS TRAINING A MACHINE LEARNING OR ARTIFICIAL INTELLIGENCE MODEL, WITHOUT EXPRESS PERMISSION.

Massachusetts Medical Society reserves all rights, including those for text and data mining, AI training and similar technologies.

No copyright is claimed to any work of the U.S. Government.

PERMISSIONS REQUESTS

For information on obtaining permission to reproduce content from the New England Journal of Medicine, please refer to NEJM Permissions Information page.

For all other permissions inquiries, please contact [email protected].

NOTIFICATION OF COPYRIGHT INFRINGEMENT

The Massachusetts Medical Society respects the intellectual property ownership rights of others. If you believe that any copyrighted work in which you own an exclusive right is accessible on or through this website in a way that infringes your right, you may notify us by providing the following items to our designated agent:

1. A physical or electronic signature of the owner, or a person authorized to act on behalf of the owner, of an exclusive right that is allegedly infringed;
2. Identification of the copyrighted work, or a representative listing of the copyrighted works, that you claim have been infringed;
3. Identification of the material that you claim to be infringing or to be the subject of infringing activity and information reasonably sufficient to locate the material;
4. Information for contacting you, including your address, telephone number, and, if available, e-mail address;
5. A statement that you have a good-faith belief that the claimed infringement is not authorized by the copyright owner, its agent, or the law; and
6. A statement that the information in your notice is accurate, and under penalty of perjury, that you are the owner, or are authorized to act on behalf of the owner, of an exclusive right that is allegedly infringed.

You may contact our agent designated to receive notice of claims of copyright infringement as follows:

Copyright Agent
Office of the General Counsel
Massachusetts Medical Society
860 Winter Street
Waltham, MA 02451-1411
Telephone: 781-434-7242
E-mail: [email protected]