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Evidence map for chronic low back pain interventions depicting the overall evidence landscape for the 2021 update to the low back pain clinical practice guideline. Grade A–level evidence corresponds with “should use” and is in blue, grade B–level evidence corresponds with “may use” and is in green, and grade C–level evidence corresponds with “can use” and is in orange. Knowledge gaps are summarized in purple. Abbreviation: RCT, randomized clinical trial.
