Elementary study

• 危险因素

Elementary study的用法和样例：

例句

1. The aim of this study was to determine the risk factors for postoperative mortality in patients with cirrhosis.
   本研究的目的是明确肝硬化患者术后的危险因素。
2. Imbibing alcohol actually carries a higher risk, so it would be surprising if this were the actual cause for the decrease in breast cancers in the later study.
   而饮酒使发病风险增加的更多，因此如果在后续研究中发现激素替代疗法确实是乳腺癌发病的危险因素，我们都会感到比较惊讶。