Methods A retrospective cohort study was used in this study.
方法采用历史前瞻性流行病学方法。
Herpes zoster as a risk factor for stroke and TIA: a retrospective cohort study in the UK.
【译】带状疱疹是卒中和TIA的危险因素：一个在英国的回顾性队列研究。
Methods A cross sectional and a retrospective cohort study and animal experiment were carried out.
方法采用横断面调查、回顾队列调查和动物实验等方法。
Methods: A retrospective cohort study was performed , Date from birth defects of Hoping distinct Shenyang in 2007.
方法对2007年人群出生缺陷发生情况进行回顾性分析。
A retrospective cohort study of culture-positive HCAP over 6 years (January 2003-December 2008) was performed at Barnes-Jewish Hospital, a 1200-bed urban teaching hospital.
这项回顾性队列研究开展了六年，在巴恩斯犹太医院。这是一个1200床的教学医院。
A retrospective cohort study was conducted among iron and steel workers working in 18 iron and steel making and rolling factories from 3 Chinas iron and steel group corporations.
采用回顾性队列研究对国内三个钢铁集团公司所属的18个炼铁、炼钢和轧钢厂进行了流行病学研究。
Methods a preliminary investigation of the health status and occupational hazard of4 433traffic policemen on 16 cities in China was performed by using a retrospective cohort method.
方法应用回顾性队列调查方法，对全国16个城市4 433名交通警察的健康状况及其影响因素进行了初步调查。
Design: This was a matched retrospective cohort study.
设计：这是一项配对回顾性队列研究。
DESIGN: Retrospective analysis of a prospective observational cohort.
设计：回顾性分析一组前瞻性观察队列。
Methods This retrospective cohort study used data from a perinatal database that included all deliveries at Magee-Womens Hospital from 1995 to 2002.
方法：此回顾性队列研究运用围产期资料包括从1995到2002年在Magee妇女医院分娩病例。
Methods This retrospective cohort study used data from a perinatal database that included all deliveries at Magee-Womens Hospital from 1995 to 2002.
方法：此回顾性队列研究运用围产期资料包括从1995到2002年在Magee妇女医院分娩病例。
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