<http://schema.org/description>
"In an examination of the characteristics of studies that yield large treatment effects from medical interventions, these studies were more likely to be smaller in size, often with limited evidence, and when additional trials were performed, the effect sizes became typically much smaller, according to a study in the October 24/31 issue of JAMA."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2012-10-large-treatment-effects-medical-interventions.html>