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Continue to ChatAnalgesic efficacy of ultrasound guided paravertebral block in percutaneous nephrolithotomy patients: a randomized controlled clinical study - https://avesis.ogu.edu.tr/publication/details/cfee71ec-67cf-4c12-9f69-ac3735020c26/analgesic-efficacy-of-ultrasound-guided-paravertebral-block-in-percutaneous-nephrolithotomy-patients-a-randomized-controlled-clinical-study