scholarly journals Retraction Note: Comparison of bone morphogenetic protein and autologous grafting in the treatment of limb long bone nonunion: a systematic review and meta-analysis

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Yong-Qiang Zhou ◽  
Hong-Liang Tu ◽  
Yan-Ji Duan ◽  
Xiao Chen
2017 ◽  
Vol 41 (11) ◽  
pp. 2417-2419 ◽  
Author(s):  
Gopal Shankar Krishnakumar ◽  
Alice Roffi ◽  
Davide Reale ◽  
Elizaveta Kon ◽  
Giuseppe Filardo

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