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Potasman, I.; Araujo, F. G.; Desmonts, G.; Remington, J. S. . (1986). Analysis of Toxoplasma gondii Antigens Recognized by Human Sera Obtained Before and After Acute Infection. Journal of Infectious Diseases, 154(4), 650–657. doi:10.1093/infdis/154.4.650 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research