TY  - RPRT
TI  - Air bubble in the duodenum.
AU  - J TAPIOVAARA
AU  - M SIURALA
PY  - 1961
DO  - 10.1111/j.0954-6820.1961.tb00225.x
UR  - https://pubmed.ncbi.nlm.nih.gov/13775258/
ID  - 13775258
ER  -