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Continue to ChatComparisson of fentanyl added to ropivacaine or bupivacaine in spinal anesthesia. Regional Anesthesia and Pain medicine - https://avesis.akdeniz.edu.tr/yayin/a6dea2e0-abb7-42a3-b483-4be4a3f8574f/comparisson-of-fentanyl-added-to-ropivacaine-or-bupivacaine-in-spinal-anesthesia-regional-anesthesia-and-pain-medicine