Design Prospective cohort study.
设计前瞻性队列研究。
DESIGN: Prospective cohort study.
设计：前瞻性群组研究。
Design: Retrospective cohort study.
设计：回顾性队列研究。
Study Design. Prospective cohort study.
前瞻性的队列研究。
Study Design. Consecutive cohort study.
连续队列研究。
Study Design. Retrospective cohort study.
回顾性研究。
Study Design: This is a prospective radiographic cohort study.
研究设计：该研究是一项前瞻性放射学队列研究。
Study Design. A retrospective matched cohort study with control group.
研究设计：对照配对回顾性队列研究。
Study Design. A retrospective matched cohort study with control group.
研究设计：对照配对回顾性队列研究。
应用推荐