Other research work, such as that conducted by Drs. Vichi, Lourenço, Heidbüchel and Carvalho reported prevalence of 61.0-73.0% in males and 27.0-39.0% in females.
En otras investigaciones como la de Vichi, Lourenço, Heidbüchel y Carvalho obtuvieron una prevalencia de 61.0-73.0% en hombres y de 27.0-39.0% en mujeres.