高频血管彩超在尿毒症患者复杂难建动静脉内瘘中的临床应用效果分析
고빈혈관채초재뇨독증환자복잡난건동정맥내루중적림상응용효과분석
Clinical application and effect analysis of high frequency color doppler ultrasonography in the complex and difficult to build internal arteriovenous fistula of patients with uremia