Periodontal Disease in Pregnant Patients with Rheumatic Valvular Disease: Clinical and Microbiological Study - Ávila, Walkiria Samuel; Timerman, Lilia; Romito, Giuseppe Alexandre; Marcelino, Sílvia Linard; Neves, Itamara Lúcia Itagiba; Zugaib, Marcelo; Grinberg, Max (Arquivos Brasileiros de Cardiologia, 2011)