Dr Geeta Ahlawat, “A COMPARITIVE EVALUATION OF INTRAPERITONEAL SUBDIAPHRAGMATIC INSTILLATION OF LEVOBUPIVACAINE VERSUS ROPIVACAINE FOR SHOULDER TIP PAIN AFTER LAPAROSCOPIC CHOLECYSTECTOMY; A DOUBLE BLIND PLACEBO CONTROLLED STUDY”, ijmsdr, vol. 2, no. 4, Aug. 2018.