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Tobin J. Hellyer, Terry W. Fletcher, Joseph H. Bates, William W. Stead, Gary L. Templeton, M. Donald Cave and Kathleen D. Eisenach. (1996). Strand Displacement Amplification and the Polymerase Chain Reaction for Monitoring Response to Treatment in Patients with Pulmonary Tuberculosis. The Journal of Infectious Diseases, 173(4), 934–941. doi:10.2307/30132599 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research