经验性证据建议，作者们常常在进行实施和报告其试验中忽略他们自己在计划中所说的内容。

Empirical evidence suggests that authors often ignore, in the conduct and reporting of their trial, what they stated in the protocol.

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目前对其治疗多为经验性，疗效差，尚缺乏大规模的随机对照临床试验验证各种治疗手段的疗效优劣。

Clinical treatments are mostly based on experience. Few randomized trials are available to compare the benefit of different treatment methods.

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经验性证据支持试验注册的必要性，杂志编辑们近来鼓励大家遵守。

Empirical evidence supports the need for trial registration, and recent requirements by journal editors have fostered compliance.

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