TY  - RPRT
TI  - Beta-blockade in heart failure. Basic concepts and clinical results.
AU  - M Packer
PY  - 1998
DO  - 10.1016/s0895-7061(97)00425-1
UR  - https://pubmed.ncbi.nlm.nih.gov/9503103/
ID  - 9503103
ER  -