INDICATORS OF OPTIMAL SYSTEMIC HEMODYNAMICS IN LOWER LIMB JOINT ARTHROPLASTY IN PATIENTS WITH HIGH ANESTHETIC RISK WITH UNILATERAL SPINAL ANESTHESIA COMBINED WITH UNILATERAL EPIDURAL ANALGESIA. Wor.Bul.Pub.Helt. 2022;12:151-154. Accessed February 3, 2026. https://scholarexpress.net/index.php/wbph/article/view/1202