Deswanto, I. A., & Barus, J. F. (2015). Annular pancreas: the failure of side-to-side gastrojejunostomy anastomosis and the success of repair with Roux-en-Y gastrojejunostomy. Medical Journal of Indonesia, 24(2), 115-9. https://doi.org/10.13181/mji.v24i2.1207