三期试验通常招募大量病人并可能在多个分布于世界各地的医院，诊所和肿瘤中心进行。
Phase III trials often enroll large Numbers of people and may be conducted at many doctors' offices, clinics, and cancer centers nationwide.
被研究对象年龄在55岁到65岁之间，之前三年中曾接受过医院门诊治疗，20年中研究人员跟踪观察了1824名参与者，被调查人员样本的一个缺陷是：人数分布不平均，其中63%是男性。
The sample of those who were studied included individuals between ages 55 and 65 who had had any kind of outpatient care in the previous three years. The 1,824 participants were followed for 20 years.
目的分析医院尿路感染常见的病原菌分布及细菌对抗菌药物耐药情况，为临床合理使用抗菌药物提供科学依据。
OBJECTIVE To analyze pathogenic bacterium distribution and antibiotic resistance of our hospital, and provide scientific basis for clinical rational using of antibiotics.
应用推荐