The research was approved by the Ethics Committee in Research of the University Hospital and a Free and Informed Consent Form was signed by all patients.
El Comité de Ética en Investigación del Hospital Universitario aprobó la investigación y se obtuvo el Formulario de Consentimiento Informado de todos los pacientes.
A pesquisa foi aprovada pelo Comitê de Ética em Pesquisa do Hospital Universitário e Termo de Consentimento Livre e Esclarecido foi obtido de todos os pacientes.