* In cases where access to the databases is not free, consult your library for subscription information.
*Journal figures given in round numbers. Figure represents the total number of journals in each resource; not all of these may be life science journals.
¹In cases where access to the database is not free, consult your library for subscription information
²HighWire Press enables small publishers to make their journal content available online. It is not the publisher of these journals.
³PubMed Central is an active archive for journal content; it is not a publisher.

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