MATTAR, Rejane. Breath tests for gastrointestinal diseases - will it be safe to conduct breath tests after the COVID-19 pandemic?. Clinics, São Paulo, Brasil, v. 75, p. e2092, 2020. DOI: 10.6061/clinics/2020/e2092. Disponível em: https://periodicos.usp.br/clinics/article/view/171454.. Acesso em: 19 jul. 2024.