Hashim, M. A. ., M. N. Kamarulzaman, and . A. R. . Md Ralib. “A Case of Persistent Retroperitoneal Abscess With Large Right Perinephric Collection”. IIUM Medical Journal Malaysia, vol. 18, no. 3, Jan. 2020, doi:10.31436/imjm.v18i2.664.