TY  - BOOK
AU  - Otto,
TI  - Textbook of clinical echocardiography 
SN  - 978-1-455-72857-2
U1  - 616.1207543 OTT 
PY  - 2013///
CY  - philadeiphia,PA 
PB  -  Elservier
KW  - Echocardiography
ER  -