We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThe outs and the ins of sphingosine-1-phosphate in immunity.AuthorsSpiegel, Sarah; Milstien, SheldonPublicationNature Reviews Immunology, 2011, Vol 11, Issue 6, p403ISSN1474-1733Publication typearticleDOI10.1038/nri2974