TY  - BOOK
AU  - OH J.K., SEWARD J.R., TAJIK A.J.
TI  - THE ECHO MANUAL 
SN  - 9788189836146
U1  - 616.1 
PY  - 2012///
PB  - LIPPINCOTT WILLIAMS & WILKINS
KW  - GEN.MEDICINE
ER  -