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Yamada, S.; Ishikawa, M.; Miyajima, M.; Atsuchi, M.; Kimura, T.; Kazui, H.; Mori, E. . (2016). Disease duration: the key to accurate CSF tap test in iNPH. Acta Neurologica Scandinavica, (), n/a–n/a. doi:10.1111/ane.12580 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research