Peripheral monocytes are functionally altered and invade the CNS in ALS patients. - Zondler L; Müller K; Khalaji S; Bliederhäuser C; Ruf WP; Grozdanov V; Thiemann M; Fundel-Clemes K; Freischmidt A; Holzmann K; Strobel B; Weydt P; et al. (Acta neuropathologica, 2016)