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两期交叉试验,是指将适当的受试者随机分成两组,并随机决定两种疗法的处理顺序。譬如,随机决定第一组给处理A,第二组给处理B。然后加以交叉。最后将
A two-phase crossover trial refers to randomizing the appropriate subjects into two groups and randomly determining the treatment sequence for both therapies. For example, the first group is randomly assigned to process A, and the second group is assigned to process B. Then cross it. Finally will