Development of an instrument to assess the quality of acupuncture: results from a Delphi process.
Smith CA, Zaslawski CJ, Zheng Z, Cobbin D, Cochrane S, Lenon GB, Loyeung B, Meier PC, Walsh S, Xue CC, et al. J Altern Complement Med. 2011 May; 17(5):441-52. Epub 2011 May 6.