Content on HDCN is divided into a FREE ZONE and a KEY ZONE. You may choose either subscription level when filling out this form. If you have selected a KEY ZONE subscription, you will be taken to a payment form.
  • Note: Users with an existing login should NOT use this form to upgrade or renew. Please go to the existing user form.
  • Free Zone Directories:
    • Opened by logins with either free zone or key zone privileges
    • Access to weekly article abstracts
    • Access to sponsored symposia
    • Popup box asks you to enter your Username (LoginID) and Password for the FREE ZONE of HDCN.
    • All FREE ZONE users receive a weekly email update describing what's new on HDCN.
  • Key Zone Directories:
    • Opened by logins with key zone privileges only.
    • Audiofiles from ASN, RPA, ADC, RRI
    • Slide/audio from ASN, ANNA, and RPA symposia that were not supported by industry
    • Abstracts from ASN
    • Featured, full-text articles from JASN, CJASN, and other, participating publishers (usually 2-4 articles per month).
    • $5.00 discount for paid ANNA CEs
    • Access to various search indexes on HDCN
    • Popup box will ask you for your Username (LoginID) and Password for the FREE or KEY ZONE of HDCN.
Whereas HDCN is targeted to physicians, and especially nephrologists, other medical professionals are welcome to register. Patient registration is discouraged, because the material on HDCN is aimed at a professional level. However, patient registration is not forbidden.

Instructions on filling out this form

Please fill out the material truthfully. The name you enter here will be the name that goes on any CME/CNE certificate. Your address or phone number will not be sold nor given out to any other party. Your email address will be used to send you a weekly update of new material on HDCN (the information service is updated every month or sometimes every 2 weeks). Filling out this form entails no financial obligation. After you complete the form and agree to the disclaimer, you will be a registered user of HDCN with access to material in FREE ZONE directories, and also, if you choose to obtain a paid subscription, to KEY ZONE directories.

If you have any queries concerning your registration, please contact us by email (editor at or by phone at tel: 1-630-325-3276 (during normal business hours U.S. Central time).

Please do NOT try to use this form to get a KEY ZONE subscription if you are already registered for the FREE ZONE. The program will tell you that you are already registered and won't let you proceed. If you have a FREE ZONE registration, please UPGRADE by going to THIS LINK.
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In the boxes below, please choose and then enter a login (user name) and password. DON'T use the password to your computer account, your bank, or your checking account here, for internet security reasons. The loginID and password are case sensitive. This means that capital letters are important: If you choose a username of CaitLin, then caitlin will not work.
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To complete your registration, read the DISCLAIMER and, if you agree, press "I AGREE". This submits your registration.

Warning, disclaimer
Please read and click I AGREE to complete your registration

The information at this server is provided with the understanding that the publisher, authors, and advisors are not rendering medical or professional services. Medicine is a rapidly changing area, and efforts have been made to provide information that is medically correct at the time of initial posting. However, there may be mistakes, both typographical and in content, and subsequent findings may invalidate what is posted on this site. In portions of this site, comments are made by persons identified as physicians. No attempt has been made to verify the medical credentials of persons contributing to discussions or talks. Typographical errors are common in slides, and one should not rely on drug dosages listed either in the slides, transcripts, or posted abstracts without first verifying them from manufacturer-supplied product information.

The material provided should be used only as a general guide and not the ultimate source of information and should not be used to make personal or professional decisions. The authors, advisors, and publisher shall have neither liability not responsibility to any person or entity with respect to any loss or damage alleged to be caused directly or indirectly by the information presented on this server.
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