Two parallel group trials found no significant difference in machine usage, whereas a cross-over study found a significant difference.
两项平行组别试验未发现机器使用有意义的差异，然而，一项交叉试验显示有意义的差异。
Two parallel group trials found no significant difference in machine usage, whereas a cross-over study found a significant difference.
两项平行组别试验未发现机器使用有意义的差异，然而，一项交叉试验显示有意义的差异。
应用推荐