Annals of periodontology - Chicago : American Academy of Periodontology, 1998 - 1998: 3(1) 2000: 5(1) 2001: 6(1) 2002: 7(1) 2003: 8(1) ISSN: 0034-7493 Subjects--Topical Terms: Periodoncia Dewey Class. No.: PP 617.632 A613p