DOI: 10.1055/s-00000012

Endoscopy

References

Schoefl R, Haefner M, Wrba F. et al.
Forceps biopsy and brush cytology during endoscopic retrograde cholangiopancreatography for the diagnosis of biliary stenoses. 
Scand J Gastroenterol 1997; 32: 363-368  

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