TY  - RPRT
TI  - Letter: Coronary sinus pacemaker problems.
AU  - L S Dreifus
PY  - 1974
DO  - 10.1016/0002-8703(74)90258-0
UR  - https://pubmed.ncbi.nlm.nih.gov/4419878/
ID  - 4419878
ER  -