DOI: 10.1055/s-00000089

Ultraschall in der Medizin - European Journal of Ultrasound

References

Pretre R, Rohner A.
Pneumomediastinum and subcutaneous cervical emphysema as signs of rectosigmoid perforation. 
Gastroenterol Clin Biol 1992; 16: 460-462  

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