Some embodiments of the present invention provide stimulation systems and components for selective stimulation and/or neuromodulation of one or more dorsal root ganglia through implantation of an electrode on, in or around a dorsal root ganglia. Some other embodiments of the present invention provide...http://www.google.fr/patents/US7502651?utm_source=gb-gplus-shareBrevet US7502651 - Methods for stimulating a dorsal root ganglion