The study is based on a large population sample and took into account other possible factors, such as depression, season and levels of physical activity.
这项研究基于大群体样本，并且考察分析了其他可能影响的因素，如忧郁，季节和身体活动水平。
2
The technique is based on taking small genetic samples and rapidly copying them to provide a large enough sample to study.
这项技术是根据提取小量遗传学样本，快速扩增大量样本进行研究。
3
Orthodox study mode on multiple factor disease and largesample perspective study indicate that hereditary factor is a considerable role in the process of alcohol dependence pathogenesis.