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Jun Tan; Jing Xu; Ren Guo Xie; Ai Dong Deng; Jin Bo Tang. (2011). In Vivo Length and Changes of Ligaments Stabilizing the Thumb Carpometacarpal Joint. , 36(3), 0–427. doi:10.1016/j.jhsa.2010.11.007 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research