translation.en: We needed patients who were on one of them and had a glucose measurement, then got the second one and had another glucose measurement, all within a reasonable period of time -- something like two months.
translation.zh: 我们需要服用其中一种药物的病人 有血糖纪录 然后在服用第二种以后 有另一次血糖纪录 并且是在一个比较合理的阶段以内 比如像两个月