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Mansano-Schlosser, Thalyta Cristina; Ceolim, Maria Filomena; Valerio, Teresa D. . (2017). Poor sleep quality, depression and hope before breast cancer surgery. Applied Nursing Research, 34(), 7–11. doi:10.1016/j.apnr.2016.11.010 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research