Microbiological profile of patients with generalized gingivitis undergoing periodontal therapy and administration of Bifidobacterium animalis subsp. lactis HN019: A randomized clinical trial - Flavia Furlaneto; Yara Loyanne de Almeida Silva Levi; Débora de Souza Ferreira Sávio; Izadora Cianfa Firmino da Silveira; Adriana Miranda de Oliveira; Talita Gomes Baêta Lourenço; Marcella Costa Ribeiro; Pedro Henrique Felix Silva; Sergio Luiz de Souza Salvador; Ana Paula Vieira Colombo; Michel Reis Messora (PLoS ONE)