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How to Activate a New Subscription to PNAS Online

After you have sent payment for PNAS Online, you will receive a letter with your Access Code Number. Please allow 1 week for processing. After you receive the letter, Click Here to review the PNAS Online Subscription Agreement. By activating your online subscription, you agree to all Subscription Agreement terms and conditions.

Next, you must ACTIVATE your online subscription as shown below. This step need only be done once, the first time you access PNAS Online. Please note that if you renew an active subscription, you will not need to repeat the activation process. The expiration date for your online record will be updated shortly after your renewal is processed.

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How to Use PNAS Online Without a Subscription

Access to the complete PNAS Online (full text and graphics of recent papers and papers published online before print in PNAS Early Edition) is limited to paid subscribers and to NAS Members. Without a subscription to PNAS Online, you still have access to Tables of Contents, abstracts, full-text searching, and all content older than 6 months at no cost and without having to register.



Online Subscription Information and Maintenance

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PNAS Subscription Customer Service
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