There are various conditions that may be successfully treated with radiofrequency lesioning, including: 1  Facet joint pain. 2  Discogenic pain. 3  Coccydodynia. Sympathetically mediated pain.
Frederick S. Yang Frederick S. Yang is a partner with the Garin Hart Yang Research Group, one of the most respected and successful political polling firms in the country for Democratic candidates. Garin Hart Yang counts among its current clients 12 members of the U.S. Senate, 18 members of the U.S. House of Representatives, and six sitting governors. He also serves as a senior vice president with Peter D. Hart Research Associates, Inc., Garin Hart Yangâs parent company.
Before joining Hart Research, he worked on several political campaigns in a variety of roles, from precinct walker to field coordinator. Mr. Yang and his wife Laurie are the proud parents of Grace, Olivia, and Natalie. Courtney Couillard is assistant to Fred Yang.