Limited role for bronchoalveolar lavage to exclude COVID-19 after negative upper respiratory tract swabs: a multicentre study.
Pietro GeriFrancesco SaltonLina ZuccatostaMario TamburriniMarco BioloAnnalisa BuscaMario SantagiulianaUmberto ZucconPaola ConfalonieriBarbara RuaroPierlanfranco D'AgaroStefano GaspariniMarco ConfalonieriPublished in: The European respiratory journal (2020)