TY  - BOOK
AU  - Underwood,Donald A.
TI  - Clinical electrocardiography: self-assessment and review 
SN  - 0721666922
PY  - 1993///
CY  - Philadelphia
PB  - W. B. Saunders
KW  - Electrocardiography
KW  - Examinations, questions, etc
ER  -