■シャープリーの論文
Research findings on neurolinguistic programming: Nonsupportive data or an untestable theory?.
http://psycnet.apa.org/?fa=main.doiLanding&doi=10.1037/0022-0167.34.1.103
■プラセボ
Is the Placebo Powerless?― An Analysis of Clinical Trials Comparing Placebo with No Treatment
http://content.nejm.org/cgi/reprint/344/21/1594.pdf