The Journal of Experimental Medicine Journal of Experimental Medicine Journal of Experimental Medicine, Rockefeller University Press, 2003, 197 (1), pp.121-7. ⟨10.1084/jem.20021468⟩ Journal of Experimental Medicine, 2003, 197 (1), pp.121-7. ⟨10.1084/jem.20021468⟩