TY  - RPRT
TI  - Difficulties encountered when using ERCP-based tissue sampling techniques to establish a diagnosis.
AU  - Maurits J Wiersema
PY  - 2002
DO  - 10.1067/mge.2002.127163
UR  - https://pubmed.ncbi.nlm.nih.gov/12196800/
ID  - 12196800
ER  -