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<http://webisa.webdatacommons.org/398799253>	<http://www.w3.org/ns/prov#value>	"A method of controlling a volume of neural tissue stimulation in a spinal column or other neural tissue of a spinal cord, the spinal column having epidural and intrathecal spaces and a dorsal column, the dorsal column having dorsal root entry zones, the spinal column having a midline, the method comprising the steps of:a. placing a first electrode near the midline of the spinal column near the neu" .