TY  - RPRT
TI  - Second degree atrioventricular block.
AU  - Y Watanabe
AU  - L S Dreifus
PY  - 1967
DO  - 10.1093/cvr/1.2.150
UR  - https://pubmed.ncbi.nlm.nih.gov/6058851/
ID  - 6058851
ER  -