Objective To investigate the quality of life and happiness of the patients with diabetic retinopathy.
目的探讨糖尿病性视网膜病变患者的生活质量和幸福度等心理状况。
Happiness is a subject feeling, but we need some objective description.
幸福是一种主观感受，但是我们需要一种客观的描述。
Happiness is a subject feeling, but we need some objective description.
幸福是一种主观感受，但是我们需要一种客观的描述。
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