我们进行了一项双盲，多中心研究，比较了美沙美拉明与美沙酮对安慰剂治疗活动性溃疡性结肠炎的疗效。
We performed a double-blind, multicenter study, comparing MMX mesalamine vs placebo for the treatment of active ulcerative colitis.
十名病人接受干细胞治疗，四名病人接受安慰剂治疗。
一项新的研究显示美国的医生给予病人安慰剂治疗比病人知道的情况更加平常。
A new study shows doctors in the United States ordered placebo treatments more commonly than patients were told.
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