These trials will give a better idea of the number of doses required for a person to be immunized, as well as of the quantity on active principle (antigen) needed in each vaccine dose.
Continuous use of your birth control pills works best if you're taking a monophasic pill - with the same hormone dose in the three weeks of active pills.
在使用单周期药物时连续服药的方法效果最好——连续服用3周含有同种激素的活性药片。
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Active management of labor regimens use a high-dose oxytocin infusion with short incremental time intervals.