DESIGN: Randomized case control study to patients based on diagnosis SETTING: department of general diseases, rehabilitation room and ultrasound department of a university hospital.
设计：以患者为研究对象，以诊断为依据的随机对照研究。单位：一所大学医院的综合科、康复室及超声波室联合进行的课题研究。
Furthermore, our Maintenance Department is rendering probe-repairing services for ultrasound probe users.
此外，我们的维修部渲染探针修复服务的超声探头用户。
Objective to study the clinical applied value of ultrasound-guided automatic biopsy in the diagnosis of neck lump in the department of ORL-HNS.
目的探讨彩色超声引导下穿刺活检在耳鼻喉头颈外科中对颈部包块诊断的临床应用价值。
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