Tirta I, Widnyana IMG, Sinardja CD, Putra KAH, Parami P, Suarjaya IPP, Wiryana M, Senapathi TGA. THE EFFECTIVENESS OF GREATER AURICULAR NERVE (GAN) BLOCK USING ISOBARIC ROPIVACAINE AS AN ANALGESIC ADJUVANT AS COMPARED TO INTRAVENOUS OPIOID AS ANALGESIA FOR MIDDLE EAR SURGERY. PREPOTIF [Internet]. 2024Aug.30 [cited 2024Nov.8];8(1):2559-6. Available from: http://journal.universitaspahlawan.ac.id/index.php/prepotif/article/view/27255