Hegar, B., Alatas, F. S., Kadim, M., Putri, N. D., & Wardhani, W. I. (2014). Natural Evolution of Regurgitation in Children Aged 12-24 Months: A 1-year Cohort Study. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, 14(1), 13–18. https://doi.org/10.24871/141201313-18