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Zvi Steiner; Oleg Kleiner; Yehuda Hershkovitz; Jorge Mogilner; Zahavi Cohen. (2007). Compensatory sweating after thoracoscopic sympathectomy: an acceptable trade-off. , 42(7), 0–1242. doi:10.1016/j.jpedsurg.2007.02.015 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research