TY  - RPRT
TI  - A marble in the small bowel.
AU  - Rick R van Rijn
AU  - Marc A Benninga
PY  - 2007
DO  - 10.1007/s00247-006-0400-2
UR  - https://pubmed.ncbi.nlm.nih.gov/17225154/
ID  - 17225154
ER  -