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Carrageta, David F.; Oliveira, Pedro F.; Alves, Marco G.; Monteiro, Mariana P. . (2019). Obesity and male hypogonadism: Tales of a vicious cycle. Obesity Reviews, (), obr.12863–. doi:10.1111/obr.12863 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research