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M.J.W. van der Oest;L.S. Duraku;E.R. Andrinopoulou;R.M. Wouters;S.M.A. Bierma-Zeinstra;R.W. Selles;J.M. Zuidam;. (2021). The prevalence of radiographic thumb base osteoarthritis: a meta-analysis . Osteoarthritis and Cartilage, (), –. doi:10.1016/j.joca.2021.03.004 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research