截止到中午12点，共采集了血液9000毫升。
研究人员在三年之内共采集了接近300万人的血样。
Blood samples were taken from nearly three million people over a period of three years.
共采集菌斑3次，取除下颌前牙以外的所有牙面的龈上菌斑。
The samples are gathered for 3 times from supragingival dental plaque on all teeth except mandibular anterior teeth.
应用推荐