title: Maximal Inspiratory Pressure: A Lost Point Trying to Explain a S-Index Function Line Index.
authors.affiliation: Physical Therapy Division, University of Brasilia , Brasília, Brazil.
authors.forename: Paulo Eugênio
authors.initials: PE
authors.lastname: Silva
authors.affiliation: Physical Therapy Division, University of Brasilia , Brasília, Brazil.
authors.forename: João Luiz Quaglioti
authors.initials: JL
authors.lastname: Durigan
authors.affiliation: Physical Therapy Division, University of Brasilia , Brasília, Brazil.
authors.forename: Gerson
authors.initials: G
authors.lastname: Cipriano