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Vieira ER, Albuquerque-Oliveira PR, Barbosa-Branco A.Vieira ER, et al. Among authors: barbosa branco a.BMJ Open. 2011 May 14;1(1):e000003. doi: 10.1136/bmjopen-2011-000003.BMJ Open. 2011.PMID: 22021719Free PMC article.
Ildefonso Sde A, Barbosa-Branco A, Albuquerque-Oliveira PR.Ildefonso Sde A, et al.J Bras Pneumol. 2009 Jan;35(1):44-53. doi: 10.1590/s1806-37132009000100007.J Bras Pneumol. 2009.PMID: 19219330Free article.English, Portuguese.
Leão AL, Barbosa-Branco A, Rassi Neto E, Ribeiro CA, Turchi MD.Leão AL, et al. Among authors: barbosa branco a.Rev Bras Epidemiol. 2015 Jan-Mar;18(1):262-77. doi: 10.1590/1980-5497201500010020. Epub 2015 Mar 1.Rev Bras Epidemiol. 2015.PMID: 25651026Free article.English, Portuguese.
Barbosa-Branco A, Bültmann U, Steenstra I.Barbosa-Branco A, et al.Cad Saude Publica. 2012 Oct;28(10):1854-66. doi: 10.1590/s0102-311x2012001000005.Cad Saude Publica. 2012.PMID: 23090166Free article.