Yau, J. W. K., C. H. Tan, C. Y. P. Chau, and K. Y. Wong. “Primary Retroperitoneal Mucinous Cystadenoma in a Male Patient: A Case Report”. International Surgery Journal, vol. 6, no. 9, Aug. 2019, pp. 3359-63, doi:10.18203/2349-2902.isj20194078.