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The objective of this study was to compare analgesic efficacy of erector spinae plane block (ESP, thoracic paravertebral block (TPV, and intercostal nerve block (ICN after video-assisted thoracoscopic surgery (VATS). Prospective, randomized, single-blind study. University hospital, single institution. Adult patients undergoing VATS. Ultrasonography-guided ESPB, ultrasonography-guided TPVB, or ICNB. Patients were enrolled into the following three groups according to analgesia technique as ESPB, TPVB, or ICNB, respectively, group ere