Xie Zhi-Tao, Wang Shen, Z. Y.-T. T. Z.-J. M. Z.-L. L. B.-Y., & Jing, N. (2017). The High Prevalence of Knee Osteoarthritis in North China Population: The Handan Osteoarthritis Study. International Journal of Innovative Research in Medical Science, 2(09), 1276 to 1279. https://doi.org/10.23958/ijirms/vol02-i09/07