DR. JISHNU.V,DR VINOD KUMAR YADAV,DR LEENA GOEL,DR ANSHUL GAUR. A comparative study of local anaesthetic agent levobupivacaine and ropivacaine in ultrasound guided erector spinae plane block in patients undergoing laparoscopic cholecystectomy. International Journal of Pharmacy Research & Technology (IJPRT), [S. l.], v. 16, n. 2, p. 351–364, 2026. Disponível em: https://ijprt.org/index.php/pub/article/view/2298. Acesso em: 18 aug. 2026.