Root coverage in smokers with acellular dermal matrix graft and enamel matrix derivative: a 12-month randomized clinical trial - Costa, Priscila Paganini; Alves, Luciana Bastos; Souza, Sérgio Luis Scombatti de; Grisi, Márcio Fernando de Moraes; Palioto, Daniela Bazan; Taba Júnior, Mário; Novaes Júnior, Arthur Belém (The International Journal of Periodontics & Restorative Dentistry, 2016)