TY  - RPRT
TI  - Which peptic ulcer patients bleed?
AU  - K Matthewson
AU  - S Pugh
AU  - T C Northfield
PY  - 1988
DO  - 10.1136/gut.29.1.70
UR  - https://pubmed.ncbi.nlm.nih.gov/3343016/
ID  - 3343016
ER  -