V. T. M. Borges, B. B. Matsubara, C. G. Magalhães, J. C. Peraçoli, and M. V. C. Rudge, “ Effect of physiological overload on pregnancy in women with mitral regurgitation ”, Clinics, vol. 66, no. 1, pp. 47–50, Jan. 2011, doi: 10.1590/S1807-59322011000100009.