AAI offer a free manuscript deposition service to PMC/UKPMC

"The American Association of Immunologists, publisher of The Journal of Immunology, have launched a new, free service to authors, to deposit selected manuscripts to PubMed Central (PMC). Articles deposited in PMC are automatically mirrored to UKPMC....On behalf of authors who are funded by such bodies, AAI will deposit all manuscripts that begin submission to The Journal of Immunology after March 29, 2011 and are ultimately accepted for publication; the author must select this option on the online submission form in order for AAI to do so. AAI will deposit the version of the manuscript that has undergone peer review and has been accepted for publication, before copyediting and formatting...."