00278nam a2200121Ia 4500008004100000020001800041082001400059100001500073245003800088250000800126260001400134300000800148160921s9999 xx 000 0 und d a81-8061-501-4 a616.07543 aBHARGAVA S aULTRASOUND DIFFERENTIAL DIAGNOSIS a1st bJPBc2005 a500