TY  - BOOK
AU  - Friedman,H.Harold
TI  - Diagnostic electrocardiography and vectorcardiography 
SN  - 0070224242
AV  - MED RC683.5 E5F68 
PY  - 1977///
CY  - New York 
PB  - McGraw-Hill
KW  - Electrocardiography
KW  - Vectorcardiography
ER  -