(EN) E. Ernst, Acupuncture: What Does the Most Reliable Evidence Tell Us?, su jpsmjournal.com, 15 settembre 2008. URL consultato il 28 aprile 2018.
«However, most of the clinical trials are methodologically weak. Common flaws include an insufficient control of nonspecific effects, inadequate control interventions, and small sample sizes. Another problem is, as Skrabanek noted more than 20 years ago, “selective inattention” to results that fail to fulfill the hopes of acupuncturists. The trial data are by no means all positive, and the negative studies are often ignored by the vociferous enthusiasts of alternative medicine.»
