You need a standard subscription without enabling sponsored subscriptions. You can still invite external collaborators to individual reviews.

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Cochrane recommends an unlimited subscription and you should ask us to enable sponsored individual subscriptions. Cochrane will provide you a code you can share with anyone who you want to have a subscription. When they apply the code they won't need to pay on the subscription website. The code can be used once per person. The code can be shared if a subscriber wishes to invite an external person to collaborate.

Cochrane recommends an unlimited subscription and you should ask us to enable sponsored subscriptions with email and/or IP authentication. Please tell us the email domains and IP ranges you want to use.