Frequency method and Bayesian method are the two main data mining algorithms used in pharmacovigilance nowadays. 目前各国普遍使用的数据挖掘方法主要有频数法与贝叶斯法。
Also at baseline, the researchers used validated food frequency questionnaires to assess consumption of coffee and black tea for the previous year. 最初，研究者采用经确认有效的食物频数问卷来评估最初几年的咖啡和红茶摄入量。
