Chang, C. B., Yoo, J. H., Koh, I. J., Kang, Y. G., Seong, S. C., & Kim, T. K. (2010). Key factors in determining surgical timing of total knee arthroplasty in osteoarthritic patients: Age, radiographic severity, and symptomatic severity. Springer Milan.

Chang, Chong Bum, Jae Ho Yoo, In Jun Koh, Yeon Gwi Kang, Sang Cheol Seong, và Tae Kyun Kim. Key Factors in Determining Surgical Timing of Total Knee Arthroplasty in Osteoarthritic Patients: Age, Radiographic Severity, and Symptomatic Severity. Springer Milan, 2010.

Chang, Chong Bum, et al. Key Factors in Determining Surgical Timing of Total Knee Arthroplasty in Osteoarthritic Patients: Age, Radiographic Severity, and Symptomatic Severity. Springer Milan, 2010.