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3. TPI Level 1 Certification Seminar Manual. Titleist Performance Institute. Philadelphia, PA. June 21-22, 2010.
4. TPI Level 2 Certification Seminar Manual. Titleist Performance Institute. New Orleans, LA. Feb. 7-8, 2011.
5. Evans, K., Refshauge K., & Adams, R. (2005). Predictors of low back pain in young elite golfers: A preliminary study. Physical Therapy in Sport, 6, 122-130.