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4. The applicability of osseointegrated oral implants in the rehabilitation of partial edentulism: a prospective multicenter study of 558 fixtures;Van Steenberghe;Int J Oral Maxillofac Implants,1990
5. Oral function in patients treated with prostheses on Brånemark osseointegrated implants in partially edentulous jaws: a pilot study;Tzakis;Int J Oral Maxillofac Implants,1990