A. M. P. Barbosa, G. Marini, F. Piculo, C. V. C. Rudge, I. M. P. Calderon, and M. V. C. Rudge, “Prevalence of urinary incontinence and pelvic floor muscle dysfunction in primiparae two years after cesarean section: cross-sectional study”, Sao Paulo Med J, vol. 131, no. 2, pp. 95–99, Mar. 2013.