TY  - RPRT
TI  - Variceal bleeding: does variable delay in trial entry invalidate comparison between trials?
AU  - D Bullimore
PY  - 1987
DO  - 10.1136/gut.28.6.653
UR  - https://pubmed.ncbi.nlm.nih.gov/3305184/
ID  - 3305184
ER  -