TY  - RPRT
TI  - [Problems and results in pacemaker implantation].
AU  - F Helmer
AU  - E Domanig
AU  - A Elkadi
AU  - E Wolner
PY  - 1967
UR  - https://pubmed.ncbi.nlm.nih.gov/5591367/
ID  - 5591367
ER  -