academic article

• A randomized controlled trial of Tai Chi for tension headaches.  Evidence-based Complementary and Alternative Medicine.  2007
• A randomized controlled trial of tai chi for tension headaches..  Evidence-based complementary and alternative medicine : eCAM.  4:107-13. 2006
• International prevalence, recognition, and treatment of cardiovascular risk factors in outpatients with atherothrombosis.  JAMA.  2006