Prevalence of alpha-1 antitrypsin deficiency and allele frequency in patients with COPD in Brazil

by Rodrigo Russo, Laura Russo Zillmer, Oliver Augusto Nascimento, Beatriz Manzano, Ivan Teruaki Ivanaga, Leandro Fritscher, Fernando Lundgren, Marc Miravitlles, Heicilainy Del Carlos Gondim, Gildo Santos Junior, Marcela Amorim Alves, Maria Vera Oliveira, Altay Alves Lino de Souza, Maria Penha Uchoa Sales, José Roberto Jardim