000 00271nam a2200109Ia 4500
008 220729s2011 xx 000 0 und d
041 _aeng
100 _aJohn M A O
245 _aMa and Mateers emergency ultrasound
250 _a2
260 _aNew York
_bMcGraw Hill
_c2011
999 _c135461
_d135461