双样本不能发？选题选得好，1区也能搞！

文章题目：
The association between lipid biomarkers and osteoarthritis based on the National Health and Nutrition Examination Survey and Mendelian randomization study
中文标题：
脂质生物标志物与骨关节炎之间的关联基于国家健康与营养检查调查和孟德尔随机化研究