@misc{indiciaeee45afa5e61a, title = {Retroperitoneal abscess from perforated sigmoid diverticulitis.}, author = {K I Norton and B A Cohen and M A Reiner and J S Freed and D S Mendelson and J D Goodman}, year = {1985}, url = {https://pubmed.ncbi.nlm.nih.gov/4073004/}, note = {Source identifier: 4073004} }