TY  - RPRT
TI  - An unusual case of second-degree A-V block--a study using His bundle electrograms.
AU  - W J Mandel
AU  - A Kermaier
AU  - H N Allen
AU  - H Hayakawa
PY  - 1972
DO  - 10.1378/chest.61.1.37
UR  - https://pubmed.ncbi.nlm.nih.gov/5049499/
ID  - 5049499
ER  -