1·Study Design. Prospective cohort study.
前瞻性的队列研究。
2·Study Design. Consecutive cohort study.
连续队列研究。
3·Methods: a forward looking cohort Study.
方法前瞻性的队列研究。
4·METHOD Design was prospective cohort study.
方法前瞻性队列研究。
5·DESIGN: a prospective cohort study was conducted.
设计：前瞻性队列研究。
6·Design: Retrospective cohort study, single centered.
设计：单中心回顾性队列研究。
7·Study Design. Prospective, multicenter, cohort study.
研究设计；前瞻性，多中心，队列研究。
8·Design: This was a matched retrospective cohort study.
设计：这是一项配对回顾性队列研究。
9·Design Ongoing prospective cohort study in Shanghai, China.
中国上海正在进行的前瞻性队列研究。
10·Methods: Multicenter prospective cohort study was designed.
方法：采用多中心前瞻性队列研究。