TY  - BOOK
AU  - Otto, Catherine M.
TI  - Textbook of clinical echocardiography 
SN  - 0721607896
AV  - RC683 .5 U5O87
PY  - 2004///
CY  - Philadelphia 
PB  - Elsevier 
KW  -  Echocardiography.
KW  - Heart Diseases -- ultrasonography
ER  -