3/22/2013--Shelton, WA, USA..Turkey tail (Trametes versicolor) at Fungi Perfecti. ..Source, Paul Stamets: "A promising clinical study shows that the turkey tail mushroom (Trametes versicolor) improves the immune systems of breast cancer patients. The multiyear study, funded by the National Institutes of Health (NIH), tracked whether or not turkey tails could positively affect the immune system of patients rebound after they ended their radiation therapy."..Paul Stamets, 57, is an American mycologist, author, and advocate of bioremediation and medicinal mushrooms and owner of Fungi Perfecti, a family run business that specializes in making gourmet and medicinal mushrooms.. ..©2013 Stuart Isett. All rights reserved.