What a Sham: The Power of Placebo

The November 2, 2017 issue of The Lancet included an online first article (R. Al-Lamee et al) describing a sham-controlled trial of percutaneous coronary intervention (PCI) in the treatment of stable angina pectoris. Each year more than 500,000 PCI procedures are done for stable angina worldwide and unblinded randomized trials have shown significant relief of […]