试验者

"Classic teaching in surgery has dictated that the use of analgesics should be withheld from children with acute abdominal pain until a surgeon establishes a definitive treatment plan," write Hannu Kokki, MD, from Kuopio University Hospital in Finland, and colleagues."It has been claimed that analgesia masks symptoms and physical findings, delays diagnosis, and leads to increased morbidity. Over the past few years, this traditional belief has been challenged."

孩童们被以随机的方式投予舌下oxycodone hydrochloride 0.1 mg/kg，或等量的生理食盐水；在第一次剂量投予前，1小时及3.5小时后，由同一位医师对参试者作身体检查、临时性诊断及临时性的病况判定；在第一次剂量的试验期中，每隔30分钟做一次疼痛指数的纪录，基线时也纪录一次，如此持续3.5小时；主要的效果指标，为疼痛程度的差异、有无腹部紧缩的状况及诊断的精确度等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。