C. D. A. D. Silva, F. F. Sanchez, M. C. D. S. P. G. Maciel, M. A. Figueira, E. B. D. Leon, and R. L. Gonçalves, “Comparative study of maximum respiratory pressure in adults from amazonas by different predictive equations”, mtprehabjournal, pp. 1–4, Dec. 2016.