TY  - RPRT
TI  - [Decrease in postoperative mortality caused by bleeding peptic ulcer].
AU  - J Checa Ceballos
AU  - J L Martínez de Dueñas
AU  - E Dabán Collado
AU  - J B García Martos
PY  - 1989
UR  - https://pubmed.ncbi.nlm.nih.gov/2772380/
ID  - 2772380
ER  -