The release of a summary of Dr Villafane's (et. al.) model with 40 participants, (U.S. Gov. clinical trial identified as NCT00873392, Sept. 25, 2014 is in a XML file, so not best formatting) is similar to his presentation in
Dec. 2013 at international Parkinson's conference(Swiss) and his presentation in Sweden in June 2014. The study ran from 2009 - 2013. The results of this "single blind study" have not been released to the public. The name of this study is "Efficacy of Transdermal Nicotine, on Motor Symptoms in Advanced Parkinson's Disease".