DESIGN: a case controlled study.
设计：病例对照研究。
DESIGN: a case controlled study using the patients with depression as the subjects and normal persons as the controls.
设计：以抑郁症患者为研究对象，正常人群为对照组的病例-对照研究。
DESIGN: Non - randomized case controlled study based on diagnosis SETTING: Rehabilitation Medicine Department of First Affiliated Hospital of Sun Yat - sen University.
设计：以诊断为依据的非随机化同期对照研究。单位：中山大学附属第一医院康复医学科。
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