Determination of the efficacy of FEV6 as a surrogate for FVC in the diagnostic screening for chronic obstructive pulmonary disease through the comparison of FEV1/FVC and FEV1/FEV6 ratios
Fernando Luiz Cavalcanti Lundgren, Marília Montenegro Cabral, Danielle Cristina Silva Clímaco, Liana Gonçalves de Macedo, Marta de Andrade Lima Coelho, Ana Lúcia Pereira Lima Alves Dias