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MANSOUR, ALAA; Mezour, Mohamed Amine; BADRAN, Zahi; Tamimi, Faleh . (2017). Extracellular matrices for bone regeneration: a literature review. Tissue Engineering Part A, (), ten.TEA.2017.0026–. doi:10.1089/ten.TEA.2017.0026 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research