TY  - RPRT
TI  - Spontaneous pneumoperitoneum. Two case reports.
AU  - I S Russell
AU  - K J Hardy
PY  - 1965
DO  - 10.1111/j.1445-2197.1965.tb06228.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5213370/
ID  - 5213370
ER  -