title: Immune privilege and the philosophy of immunology.
authors.affiliation: Department of Ophthalmology, Schepens Eye Research Institute, Mass Eye and Ear, Harvard Medical School , Boston, MA , USA.
authors.forename: Joan
authors.initials: J
authors.lastname: Stein-Streilein
authors.affiliation: Laboratory of Immunology, National Eye Institute, National Institutes of Health , Bethesda, MD , USA.
authors.forename: Rachel R
authors.initials: RR
authors.lastname: Caspi
keywords: eye; immune privilege; immune suppression; regulatory cells; tolerance