Barbosa, P. B., Franco, M. M., Souza, F. de O., Antônio, F. I., Montezuma, T., & Ferreira, C. H. J. (2009). Comparison between measurements obtained with three different perineometers . Clinics, 64(6), 527-533. https://doi.org/10.1590/S1807-59322009000600007