placebos

n.

（给无实际治疗需要者的）安慰剂( placebo的名词复数 )；安慰物；宽心话；（试验药物用的）无效对照剂

1. The placebo has been found to work with a lot of different cases.
   人们已发现安慰剂能在很多不同的病例中发挥作用。
2. Does endowment insurance really matter to everyone? Or is it just a placebo?
   养老保险对我们真的重要吗？还是只是一种心理安慰？

Placebos without Deception: A Randomized Controlled Trial in Irritable Bowel Syndrome
Placebos and painkillers: is mind as real as matter?
Immunotherapy of hay fever with ragweed antigen E: comparisons with whole pollen extract and placebos.
Effects of suggestion and conditioning on the action of chemical agents in human subjects; the pharmacology of placebos.
Placebo effect in the acute treatment of migraine: subcutaneous placebos are better than oral placebos.
Active placebos versus antidepressants for depression.
The Pervasive Problem With Placebos in Psychology: Why Active Control Groups Are Not Sufficient to Rule Out Placebo Effects
An expectancy-attribution model of the effects of placebos
Implications of placebos and nocebos in clinical research
MRC trial of treatment of mild hypertension: principal results. Medical Research Council Working Party.