TY  - BOOK
AU  - Zalis,Edwin G.
AU  - Conover,Mary H.
TI  - Understanding electrocardiography: physiological and interpretive concepts 
SN  - 0801656761
PY  - 1980///
CY  - St. Louis, Mo.
PB  - C. V. Mosby
KW  - Electrocardiography
ER  -