TY  - RPRT
TI  - Prognostication and stratification in upper GI bleeding: uni- or multivariate statistical analyses?
AU  - G Börsch
PY  - 1987
DO  - 10.1055/s-2007-1013009
UR  - https://pubmed.ncbi.nlm.nih.gov/3500849/
ID  - 3500849
ER  -