TY  - RPRT
TI  - Colon filling defect.
AU  - L Kreel
AU  - T Beale
PY  - 1993
DO  - 10.1136/pgmj.69.814.627
UR  - https://pubmed.ncbi.nlm.nih.gov/8234107/
ID  - 8234107
ER  -