00269nam a2200097Ia 4500008004100000082001900041100001600060245004600076260002300122650002600145150201s2007    xx            000 0 und d  a616.0757bB07T  aWHO/TOLE,NM  aBASIC PHYSICS OF ULTRASONOGRAPHIC IMAGING  bAITBSaDELHIc2007  aRADIOLOGY & DIAGNOSIS