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A. Denicola; H. Rubbo; D. Rodriguez; R. Radi. (1993). Peroxynitrite-Mediated Cytotoxicity to Trypanosoma cruzi. , 304(1), 0–286. doi:10.1006/abbi.1993.1350 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research