超声背向散射积分和谐波技术在老年慢性肾功能不全临床诊断中的应用
초성배향산사적분화해파기술재노년만성신공능불전림상진단중적응용
Clinical study on old renal inadequacy with integrated backscatter (IBS)and second harmon ic ultrasound imaging (SHCI)
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