TY  - GEN
AU  - Rubin,I L
AU  - Frieden,J
TI  - Electrocardiograms of the month
SN  - 0028-7628
PY  - 1972///0626
KW  - Electrocardiography
KW  - Heart Block
KW  - diagnosis
KW  - Humans
N1  - Publication Type: Journal Article
ER  -