Leah R Pink, Andrew J Smith, Philip WH Peng, Marilyn J Galonski, Paul S Tumber, David Evans, Doug L Gourlay, Lesley Gordon, Geoff A Bellingham, Satnam S Nijjar, Larry M Picard, Allan S Gordon
Pain Res Manag. 2012 Jul-Aug; 17(4): 276–280. doi: 10.1155/2012/489743