000 00271nam a2200109Ia 4500
008 220729s1989 xx 000 0 und d
041 _aeng
100 _aKrenkau F W.
245 _aDiagnostic ultrasound
250 _a3
260 _aPhiladelphia
_bWB Saunders Company
_c1989
999 _c129471
_d129471