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Clinical outcome of narrow diameter implants inserted into allografts.
J Appl Oral Sci. 2009 Aug;17(4):301-6.
http://www.ncbi.nlm.nih.gov/pubmed/19668989

Viscioni A, Franco M, Rigo L, Guidi R, Spinelli G, Carinci F.
Retrospective study of standard-diameter implants inserted into allografts.
J Oral Maxillofac Surg. 2009; 67(2): 387-93.
http://www.ncbi.nlm.nih.gov/pubmed/19138615