Figure 1From: Avoidable costs of physical treatments for chronic back, neck and shoulder pain within the Spanish National Health Service: a cross-sectional study Distribution of physical therapies administered according to the evidence of effectiveness and its corresponding costs to patients with chronic nonspecific NP, BP or SP in Spanish National Health Service. Legend: I: Proven ineffective, E: Proven effective, IE: Inconclusive evidence on effectiveness, IA: Insufficiently Assessed.Back to article page