1. The cost effectiveness of spinal cord stimulation in the treatment of pain: a systematic review of the literature 
Rod S. Taylor, PhD, Rebecca J. Taylor, MSc, Jean-Pierre Van Buyten, MD, Eric Buchser, MD, Richard North, MD, Sue Bayliss, BSc 
Journal of Pain and Symptom Management 
Volume 27, Issue 4, Pages (April 2004)
DOI: /j.jpainsymman

2. Fig. 1 Pattern of SCS costs over time. Adapted from Kumar et al.19
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )