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Zhang, Jianli; Lu, Jianghai; Wu, Yun; Wang, Xiaobing; Xu, Youxuan; Zhang, Yinong; Wang, Yan . (2016). New Potential Biomarker for Methasterone Misuse in Human Urine by Liquid Chromatography Quadrupole Time of Flight Mass Spectrometry. International Journal of Molecular Sciences, 17(10), 1628–. doi:10.3390/ijms17101628 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research