How is PubMed Central related to PMC International and portable PMC?
PMC International (PMCI) is a collaborative effort between NLM, the publishers whose journal content makes up the PMC archive, and organizations in other countries that share NLM’s interest in archiving life sciences literature. The plan is that NLM will distribute content from PMC to other archives, with the permission of the participating publishers. The other archives will use this content to operate PMCI web sites that are similar to the U. S. PMC site. Portable PMC (pPMC) is a version of the PMC software that has been developed by NCBI for use by PMCI sites. Read more about PMCI and pPMC.