Maxillary sinus augmentation using different grafting materials and dental implants in monkeys. Part III. Evaluation of autogenous bone combined with porous hydroxyapatite. - Hürzeler,M.B.; Quiñones,C.R.; Kirsch,A.; Schüpbach,P.; Krausse,A.; Strub,J.R.; Caffesse,R.G. (Clin Oral Implants Res, 1997)