Protocol for the collection, packaging, and transportation of preterm newborn stool samples Jessica Santos Passos Costa; Heli Vieira Brandão; Mara Viana Cardoso Amaral; Gabriela Cintra dos Santos; Camilla da Cruz Martins; Michelle de Santana Xavier Ramos; Tatiana de Oliveira Vieira; Raquel Guimarães Benevides; Graciete Oliveira Vieira;

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Patients with rare diseases are responsible for the majority of hospitalizations in a Brazilian tertiary pediatric hospital: Preliminary data Cristina Grassiotto; Simone Pavani; Nara Vasconcelos Cavalcanti; Angelina Gonçalves; Andreia Watanabe; Vicente Odone-Filho; Ana Cristina Aoun Tannuri; Clovis Artur A. Silva; Magda Carneiro-Sampaio;