The impact of coronavirus outbreak on breastfeeding guidelines among Brazilian hospitals and maternity services: a cross-sectional study Dahkki Walusa Assad Gonçalves-Ferri, Fábia Martins Pereira-Cellini, Kelly Coca, Davi Casale Aragon, Paulo Nader, João Cesar Lyra, Maryneia Silva do Vale, Sérgio Marba, Katiaci Araujo, Laura Afonso Dias, Daniela Marques de Lima Mota Ferreira, Gislayne Nieto, Lêni Marcia Anchieta, Rita de Cássia Silveira, Marta David Rocha de Moura, Valdenise Martins L. Tuma Calil, Viviane Christina Cortez Moraes, João Henrique Carvalho Leme de Almeida, Maurício Magalhães, Thaise Cristina Branchee Sonini, Juliane Barleta Javorsky, Érica Lobato Acaui Ribeiro, Rodrigo Ferreira, Louise Dantas Cavalcante de Almeida, Rosângela Garbers, Gabriella Maset da Silva Faria, Anelise Roosch, Ana Ruth Antunes de Mesquita, Rebecca Meirelles de Oliveira Pinto, BRACOVID Project Collaborative Group

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