Johnson, K. D., Kim, K., Yu, B., Saliba, S. A., & Grindstaff, T. L.. (2012). Reliability of thoracic spine rotation range-of-motion measurements in healthy adults. Journal of athletic training, 47(1), S. 52-60. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3418115/

Johnson, Katherine D., Kyung-Min Kim, Byung-Kyu Yu, Susan A. Saliba, and Terry L. Grindstaff. "Reliability of Thoracic Spine Rotation Range-of-motion Measurements in Healthy Adults." Journal of Athletic Training 47, no. 1 (2012): S. 52-60.

Johnson, Katherine D., et al. "Reliability of Thoracic Spine Rotation Range-of-motion Measurements in Healthy Adults." Journal of Athletic Training 47.1 (2012): S. 52-60.