GALLELLI, Luca; CIONE, Erika; ZAMPOGNA, Stefania; SCALONE, Gino. COPD and low plasma vitamin D levels: Correlation or causality?. Journal of Pulmonology and Respiratory Research, [S. l.], v. 2, n. 1, p. 011–012, 2018. DOI: 10.29328/journal.jprr.1001008. Disponível em: https://www.pulmonolrespirjournal.com/jprr/article/view/jprr-aid1008. Acesso em: 10 oct. 2025.