TY  - RPRT
TI  - GI endoscopy in China.
AU  - Qi-Lian Zhang
AU  - Zhong-Lin Yu
PY  - 2002
DO  - 10.1067/mge.2002.122791
UR  - https://pubmed.ncbi.nlm.nih.gov/12024168/
ID  - 12024168
ER  -