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通过双盲随机对照试验,用岩参片与安慰剂治疗慢性食管炎患者。结果表明,岩参片对慢性食管炎有较好的疗效。作者对依从性问题以及沾染(Contamination)、干扰(Co-intervention)等常见的临床试验偏性也作了讨论。
A double-blind randomized controlled trial of rockworm and placebo for patients with chronic esophagitis. The results show that rock tablets on chronic esophagitis has a good effect. The authors also discuss compliance issues and common clinical trial bias such as Contamination, Co-intervention.