This service checks the Crossref member status and DOI links of specific domains, indicating membership validation.
We've been asked a few times if it is possible to determine whether or not a particular domain name belongs to a Crossref member. To address this we're launching another small service that performs something like a "reverse look-up" of URLs and domain names to DOIs and Crossref member status.
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Karl Ward (2011) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: