Comparative 6-month clinical study of a subepithelial connective tissue graft and acellular dermal matrix graft for the treatment of gingival recession - Novaes Júnior, Arthur Belém; Grisi, Daniela Corrêa; Molina, Gustavo Otoboni; Souza, Sérgio Luis Scombatti de; Taba Júnior, Mário; Grisi, Márcio Fernando de Moraes (Journal of Periodontology, 2001)