Assessing the comparative effectiveness of Tai Chi versus physical therapy for knee osteoarthritis: design and rationale for a randomized trial.
Wang, Chenchen.
Iversen, Maura D.
McAlindon, Timothy.
Harvey, William F.
Wong, John B.
Fielding, Roger A.
Driban, Jeffrey B.
Price, Lori Lyn.
Rones, Ramel.
Gamache, Tressa.
Schmid, Christopher H.
2014