Research Article
Prevalence and Characterization of Breakthrough Pain Associated with Chronic Low Back Pain in the South of Spain: A Cross-Sectional, Multicenter, Observational Study
Table 1
Characteristics of BTP in patients with opioid-treated CLBP.
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calculated over the total of patients . 1Percentage calculated over the total number of patients with neuropathic BTP . 2Percentage calculated over the total number of patients with nociceptive BTP ; NA = not available. |