Simbolon, Perjuangan, Selvi Nafianti, Pertin Sianturi, Bidasari Lubis, and Aznan Lelo. 2018. “The Addition of Omeprazole to Ondansetron for Treating Chemotherapy-Induced Nausea and Vomiting in Pediatric Cancer Patients”. Paediatrica Indonesiana 58 (1), 42-7. https://doi.org/10.14238/pi58.1.2018.42-7.