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Fuks, Anna B.; Peretz, Benjamin . (2016). Pediatric Endodontics || Pulpectomy and Root Canal Treatment (RCT) in Primary Teeth: Techniques and Materials. , 10.1007/978-3-319-27553-6(Chapter 6), 71–101. doi:10.1007/978-3-319-27553-6_6 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research