Guidance for nerve block:Find:Pt:XXX>Nerve root:Doc:{Imaging modality}
guidance for nerve block:find:pt:xxx>nerve root:doc:{imaging modality}
Guidance for nerve block:Finding:To identify measures at a point in time:Not specified>Nerve root:Document:{Imaging modality}
guidance for nerve block:finding:to identify measures at a point in time:not specified>nerve root:document:{imaging modality}