Dr. Fidah Mohamed et al. 2025. TO EVALUATE THE EFFICACY OF THE OSTAP BLOCK WITH ROPIVACAINE FOR POSTOPERATIVE ANALGESIA IN LAPAROSCOPIC CHOLECYSTECTOMY. Journal of Population Therapeutics and Clinical Pharmacology. 32, 3 (Apr. 2025), 195–202. DOI:https://doi.org/10.53555/2wt9y164.