1. Factors That Affect the Efficacy of Fluoroscopically Guided Selective Spinal Nerve Root Block in the Treatment of Radicular Pain: A Prospective Cohort Study 
Paul I. Mallinson, FRCR, Charles R. Tapping, FRCR, Richard Bartlett, FRCR, Paul Maliakal, FRCR 
Canadian Association of Radiologists Journal 
Volume 64, Issue 4, Pages (November 2013)
DOI: /j.carj
Copyright © 2013 Canadian Association of Radiologists Terms and Conditions

2. Figure 1
An example of cervical nerve root injection, anteroposterior (A) and lateral (B) views.
Canadian Association of Radiologists Journal  , DOI: ( /j.carj )
Copyright © 2013 Canadian Association of Radiologists Terms and Conditions

3. Figure 2
An example of lumbar nerve root injection, anteroposterior (A) and lateral (B) views.
Canadian Association of Radiologists Journal  , DOI: ( /j.carj )
Copyright © 2013 Canadian Association of Radiologists Terms and Conditions

4. Figure 3
An example of sacral nerve root injection, anteroposterior (A) and lateral (B) views.
Canadian Association of Radiologists Journal  , DOI: ( /j.carj )
Copyright © 2013 Canadian Association of Radiologists Terms and Conditions