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Tsutomu Nomura; Evan Gold; Michael P. Powers; Susumu Shingaki; Chikara Saito; J. Lawrence Katz. (2006). A clinical case report: Interface analysis of a successful well-functioning transmandibular implant from a cadaver mandible. , 77B(2), 213–218. doi:10.1002/jbm.b.30431 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research