10.1371/journal.pone.0098071.g001 Yiqiong Zhao Yiqiong Zhao Dong Fu Dong Fu Kai Chen Kai Chen Guodong Li Guodong Li Zhengdong Cai Zhengdong Cai Yan Shi Yan Shi Xiaobing Yin Xiaobing Yin Flow chart of the studies recruited in this meta-analysis. Public Library of Science 2014 anatomy Musculoskeletal system geriatrics health care Health care policy Medical humanities Evidence-based medicine Surgical and invasive medical procedures Musculoskeletal system procedures Joint replacement surgery Orthopedic surgery mathematics Statistics (mathematics) Statistical methods meta-analysis Research assessment Systematic reviews research design Clinical research design Comparative effectiveness research studies recruited 2014-05-22 03:35:05 Figure https://plos.figshare.com/articles/figure/_Flow_chart_of_the_studies_recruited_in_this_meta_analysis_/1034680 <p>Flow chart of the studies recruited in this meta-analysis.</p>