cholesterin disease英美网络 胆甾醇病医学双语例句Comparative Observation on VE, Phospholipid and Cholesterin Concentration in Serum from Patients with Keshan Disease and Kaschin-Beck's Disease克山病和大骨节病患者血清中维生素E、总磷脂和总胆固醇的对比实验观察