His bundle electrograms in healthy adolescents with persistent second degree A-V block.

Cite this paper

@article{Lightfoot1973HisBE, title={His bundle electrograms in healthy adolescents with persistent second degree A-V block.}, author={Paul Lightfoot and Ludwig Sasse and William Mandel and Hiroshi Hayakawa}, journal={Chest}, year={1973}, volume={63 3}, pages={358-62} }